CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power

CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power

Item # CTEK56353

lowest price pledge

Retail:$164.99

Our Price: $153.99

You Save: $11.00
Battery Chargers

This item qualifies for Free Shipping

Shipping Weight: 3 lbs

Quantity: 
In Stock, Ships Today
CTEK Power Inc Battery Chargers - CTEK56353
zoom in icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
Please enter a valid email address.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

pop out icon replay 360 icon
horizontal rotate icon

Product Images

Customer Photos


  • Battery Charger
  • CTEK Power Inc
  • Wall Outlet to Vehicle Battery
  • Car/Truck/SUV
  • Motorcycle
  • Trailer
  • Lawn Mower
  • Jet Ski
  • Charges/Maintains
  • AC to DC
  • 12V
  • 150 Ah
This powerful, all-weather eight-step charger uses a patented, pulse-maintenance system to charge, maintain and help recondition 12V batteries. Backup power supply allows you to change vehicle batteries without losing complicated program settings. Call 800-298-8924 to order CTEK Power Inc battery chargers part number CTEK56353 or order online at etrailer.com. Free expert support on all CTEK Power Inc products. Guaranteed Lowest Price and Fastest Shipping for CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power. Battery Chargers reviews from real customers.


  • All Info
  • Reviews (69)
  • Q & A (180)
  • Videos (2)
  • Photos
  • Why etrailer?

CTEK Power Inc Battery Chargers - CTEK56353

This powerful, all-weather eight-step charger uses a patented, pulse-maintenance system to charge, maintain and help recondition 12V batteries. Backup power supply allows you to change vehicle batteries without losing complicated program settings.


Features:

  • Reliable, maintenance-free, 8-step system constantly monitors and maintains 12V battery charge
    • Won't overcharge or undercharge like common trickle chargers
    • Switches automatically to pulse-maintenance phase when full charge has been reached
    • Reduces risk of overheating, sulfation and premature battery failure
    • Makes use of an internal power supply during battery changes to preserve your vehicle settings
    • Restores the power capacity of stratified batteries w/ special Reconditioning Mode
  • Easy-to-use, quick-disconnect system
    • Includes 2 battery-cable attachment systems w/ Comfort Connect end plugs - charger plugs right in
      • Eyelet-terminal cable permanently attaches to battery terminals
      • Clamp-terminal cable temporarily clamps to battery terminals
  • Safe, versatile design
    • Approved for indoor and outdoor use
    • Prevents reverse-polarity mistakes
  • Convenient accessories (sold separately) provide additional security and convenience
    • Know your battery's charge level at a glance w/ optional LED-indicator battery cable
    • Reduce the hassle of charging multiple vehicles w/ additional battery-hookup cables


Specs:

  • Application: most starter and deep-cycle, 12V, lead-acid batteries - including wet, MF, AGM and most gel batteries
    • Charges batteries w/ capacities from 14 Ah - 150 Ah
    • Maintains batteries w/ capacities up to 225 Ah
  • Charge cycle: 8-step, fully automatic charger w/ pulse maintenance and Reconditioning Mode
  • Dimensions: 8-1/2" long x 3-1/2" wide x 1-7/8" tall
  • Includes:
    • 12V Battery charger (w/ 5' battery-connection cable and 6' power cord attached)
    • 1 Set of 16" battery cables w/ battery-terminal clips
    • 1 Set of 16" battery cables w/ M10 (10.5-mm) eyelet terminals
    • Owner's manual
    • Protective case
  • 5-Year warranty


CTEK MULTI US 7002 bulk charging time chart

This CTEK charger comes w/ two battery cables: one w/ clamp terminals and one w/ eyelet terminals. The 16" eyelet-terminal cable can be left attached to the battery, and the clamp-terminal cable is great for temporary connections.



CTEK MULTI US 7002 wiring cable w/ clamp and eyelet cables

Whenever you want to charge the battery, just plug CTEK's patented Comfort Connect attachment terminal into the receiving end on either of the provided battery cables.

CTEK MULTI US 7002 wiring cable w/ clamp terminals

CTEK MULTI US 7002 Charging Process

Superior and safe, this eight-step process (plus Supply Mode) uses switch-mode, pulse-maintenance technology.

  1. Desulfation stage is the initial charging phase. This stage uses electronic pulses to desulfate batteries by converting lead sulfate crystals back to usable sulfuric acid.
  2. Soft-start stage tests the battery to see whether it can be charged. If the battery is unable to hold the initial charge, the unit goes into Error Mode, alerting you that your battery must be replaced.
  3. Bulk stage is the main charging phase. This stage accounts for 80 percent of the charging process and uses a constant charge level.
  4. Absorption stage completes the charge (to virtually 100 percent) using diminishing current to prevent battery damage.
  5. Analysis stage kicks in if the pre-set maximum time needed for absorption is exceeded. The unit measures the battery voltage and stops the charging process, automatically lighting an error indicator if the battery is faulty.
  6. Recond mode is used to recondition a battery that has been severely discharged. After the battery has been charged in Normal Mode and analysis has been completed, the charger reconditions the battery w/ a constant current of 1.5A and a maximum voltage of 15.7V for up to 4 hours.
  7. Float-maintenance stage maintains a constant voltage of 13.6V during the first 10 days.
  8. Pulse-maintenance stage begins after the 10 days of float maintenance. This long-term stage maintains the battery at the optimum charge level of 95 to 100 percent by recognizing any drop in voltage and sending a corresponding pulse of current to keep the battery properly charged. Pulse maintenance can be continued for months at a time.

Supply mode - available only on this CTEK model - provides backup power to your vehicle while the battery is being changed. No more tiresome system resetting after battery changes.

CTEK US 7002 charging process chart

A goof-proof design distinguishes CTEK's new-generation chargers from the competition - you don't have to be a mechanical guru to keep your battery working at top efficiency. CTEK's patented charging system monitors your battery, providing exactly the charge it needs during each unique charging stage!

Protects the User

Your personal safety is paramount, and CTEK's spark-free, short-circuit-proof design incorporates a feature that prevents reverse polarity, keeping you safe. You simply cannot make a polarity mistake: The charger will not operate if it is attached incorrectly. In addition, the red alarm light on the charger alerts you if there is a reverse-polarity problem.



Protects the Battery

CTEK's patented, switch-mode, pulse-maintenance charging system is scientifically engineered to safely charge your battery by employing the most up-to-date technology. Using carefully monitored, low-grid voltage, CTEK's patented process differs from competitors' chargers in its ability to provide the precise final voltage that your battery needs to maintain optimum charge level. This sophisticated, interactive device will never overcharge or undercharge your battery. You may leave it attached to the battery for months, making it perfect for seasonal vehicle storage.

Won't cause overcharging or overheating. These together can cause gassing and excessive acid concentration that shortens the life of the battery by corroding the lead plates. When overcharged, the battery cells become dried out. Electrolytes "boil dry," generating excessive heat that can cause a fire.

Won't cause undercharging or sulfation. Undercharging can be just as damaging to your battery as overcharging because chronic undercharging leads to sulfation. Sulfation occurs when the lead and lead dioxide of the battery's plates react w/ sulfuric battery acid to produce lead sulfate. This in turn is converted back to lead, lead oxide and sulfuric acid. A small, unavoidable amount of sulfation and gassing naturally takes place as a result of the chemical processes occurring in lead-acid batteries. However, extensive undercharging causes extra lead sulfate to accumulate on the lead plates of the battery. Because the crystalline form of the sulfate cannot hold an electrical charge, excessive sulfation greatly diminishes the charging ability of the battery, eventually rendering it unusable.

Provides desulfation w/ a patented process. Desulfation is the reversal of sulfation damage. The CTEK charger's unique process not only prevents the undercharging that produces excess sulfation, it also includes a desulfating step that can often "revive" a lightly sulfated battery. It accomplishes this w/ carefully monitored electronic pulses of energy that help to break down the lead sulfate crystals, allowing the battery to accept charge once again.

Ensures consistent charging w/ low ripple-wave percentage rate. Ripple-wave percentage is the quantity of disturbances exhibited in current and voltage. Even minor variations in household current can cause undercharging or overcharging, but CTEK's low-ripple design regulates the incoming current before passing it on to your battery. This process can cause the charger to be a little slower than linear chargers but results in a healthier, more productive, longer-lasting battery.



Protects the Vehicle and Its Electronics

The charger is also safe for your vehicle. Its sophisticated circuitry is designed to be compatible w/ today's sensitive electronics and audio equipment. You can confidently charge your battery while it is still in the vehicle: no more hefting heavy batteries! CTEK's low ripple rate eliminates the danger of damaging electronic devices connected to the battery, and it prolongs the battery's service life. If you must replace your battery, the Supply Mode provides backup power to your vehicle's systems when you remove or replace the battery, sparing you the hassle of resetting your controls.

Closeup of indicator panel w/ descriptions

Indicator lights on the face of the charger light up to show the current charging stage.

Additional Specs:

  • Model: 56-353 (MULTI US 7002)
  • Input voltage: 100 VAC - 120 VAC, 50 Hz - 60 Hz
    • Output power is reduced at lower input voltage; a perfect charge will still be achieved
  • Maximum current demand 2.0A rms (at full charging current)
  • Charging current: 7A max
  • Back current drain: less than 3 mAh per month
  • Charging voltage: 15.7V
    • Nominal charging voltage: 12V
  • Ripple wave: less than 2 percent variance (max 150 mV rms, max 0.3A)
  • Battery cable fuse: 15A
  • Ambient temperature: -4 degrees F to +122 degrees F
    • Automatic reduction of power at increased ambient temperature
  • Cooling: natural convection
    • Do not cover the charger


56-353 CTEK MULTI US 7002 12V 8-Step, Pulse-Maintenance, Universal, Lead-Acid Battery Charger



CTEK56353 Installation InstructionsInstallation Details CTEK56353 Installation instructions



Video of CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for CTEK Multi US 7002 12-Volt Universal Battery Charger Review

Today we are going to show you part number CTEK56353 from Ctek. This is the Multi US 7002 charger. And what this charger does is best for a variety of different vehicles. Lets cover the components. First off, you obviously have the charger itself, it has clamps that will clamp onto the battery itself and charge it, and also, it has a permanent mount of two ring terminals here that use this port to connect up to the charger itself. :28

The clamps also have the same type of port to hook up to the charger. Everything can fit in this bag right here that comes supplied with it too. Lets go ahead and cover the charger and a few more details. First of, we have it plugged in, you can see that it is getting power by the indicator light right there. Go ahead and hit the mode button, now thats normal, its going to fit the vast majority of batteries out there. Car, truck, boat batteries. :57

The next one, the snow flake is for deep cycle mode, that is for optima batteries. And also, if you have a regular car battery, and it is below 41 degrees, its really cold out, that type of charge it uses in that mode is a lot easier on the battery when it is in the cold. Next is a supply feature which is really cool, what it does is puts out a constant 13 volts so you can actually hook this up to your vehicle and supply the vehicle with power while you take out the battery or change the battery. It is a neat little system that it has built in there. And finally, it has a reconditioning mode. Basically you want to use that after your battery is fully charged, it really good when you have a battery or a deep cycle battery that has been fully discharged, this actually reconditions the battery again. All right we will go ahead and hook this up to the battery here, show you a more realistic setting. We will demonstrate how to hook up to this battery here. First off, it is gong to be black to negative and red to positive. Then what we will do is this port here will connect to the port of the Ctek charger, just snaps together like so. All right we have it hooked up, finally we will go ahead and plug it to our 1-10 outlet and then this is regular maintenance for your battery. 2:18

So we will go ahead and switch it to normal mode, as you can see here it is blinking. Right now the charger is in desulphation mode. That means that it is getting the battery ready to charge. After that it will do what is called a soft charge, and then it will work its way up to the bolt charge, and then absorption which will top off the battery. And then it will analyze the condition of the battery. What it will do next is go into float mode, and then to top off the battery to maintain it. And then after that, its left in storage leave it on there, you can leave it on there for weeks or months if you need to, it will stay in pulse mode to maintain the voltage in the battery. It is easy to get in a hurry or make a mistake, you can easily put the red to black and black to red, and what happens is the charger is smart enough to know that condition and match it to it. But it does not allow anything to short out, so you are still safe. In a typically application you have to change out the battery, you are going to go ahead and undo your terminals, and then your radio is going to loose all its presets, so then you have to go back and fix all your presets and that stuff. There is a way around that, with your charger in supply mode what we can do is go back and put on our charger, loosen up, this can also go on a different ground on the vehicle also. Go ahead and loosen this one up. There is still a little bit of power going to it, so you want to be careful you do not take your wrench and go to something that is grounded and fry it. This is the idea. 4:16

Move this out of the way and go ahead change the battery and not have to worry about losing our radio settings. You do not have to use the clamps to change out the battery too. Depending on the configuration of the terminals on your vehicle, you can probably use the ring terminals to hook up from the CTEK charger, and go ahead and change out your battery that way. Whichever works out the best for you. With that we have covered all the functions and details of part number CTEK56353 from CTEK.


Customer Reviews

CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power - CTEK56353

Average Customer Rating:  4.9 out of 5 stars   (69 Customer Reviews)

This powerful, all-weather eight-step charger uses a patented, pulse-maintenance system to charge, maintain and help recondition 12V batteries. Backup power supply allows you to change vehicle batteries without losing complicated program settings.

- CTEK56353
by:

This charger has worked flawlessly on a set of 4 golf cart batteries paired in series for a 12 volt system used on my RV. It is easy to operate and durable. Instructions are easy to understand. The easy clip exchange between battery clips vs. screw down rings makes it easy to switch over to other batteries, such as for my boat, for a quick charge. 674161



- CTEK56353
by:

Works well 593068



- CTEK56353
by:

I purchased a C Tek battery charger and it is much more advanced than the Battery Tenders that I have used for years. While the Battery Tenders do a good job of keeping a battery up, the C Tek can in some cases restore a battery that is sulphated. I like it as it is also a power supply if you want to change your battery and not loose the settings in your car. 568609



- CTEK56353
by:

We have used the C-Tek chargers for many years for vehicle prototype development, and it is the only brand and model that we use. Our normal supplier did not have this item in stock. I searched online for someone who could supply our needs as we were behind on a project. Etrailer had this item in stock. They offered great customer service and fast shipping. We ordered 4 chargers. We will start using Etrailer.com in the future for the C-Tek and other items. 479791


Comments

Great

Scott - 02/28/2019

49968

- CTEK56353
by:

Excellent product, keeps my deep cycle battery up to charge. 183123


Comments

Still works great, no issues.

Mike N - 04/03/2016

17363

- CTEK56353
by:

Like that it has connections to charge various types of batteries. First use was a camper battery and it charged quickly. etrailer has always provided good service also. 715962



- CTEK56353
by:

Have not had the chance to use it but I like the advance technology. Better than the rest. 680218



- CTEK56353
by:

Great chargers. Seems like the plastic used in the proprietary connectors could be better quality. Otherwise doing a great job keeping batteries in good shape. 640056



- CTEK56353
by:

I have had great luck with Ctek chargers. E-trailer is always a great vendor tobpurchase from. 588677



- CTEK56353
by:

Good product 546444



- CTEK56353
by:

Excellent product - replaced a CTEK 3300. I will likely replace 3 more CTEK 3300 with the CTEK 7002. Great service by Shaun on the phone who enabled shipping overnight when I really needed it. Very courteous and professional. Thank You !!! 470415



- CTEK56353
by:

Excellent product does as advertised. I read a comment from one of the eTrailer experts that this battery charger can provide 12VDC as a power supply. Hooked it up and it does exactly what I need - providing shore power a few lights and fans in my cargo (motorcycle) trailer. 183861



- CTEK56353
by:

Excellent product but Made In China. 167002



- CTEK56353
by:

This is my second purchase for etrailer. The service has been excellent each time, and the quality of the products is also excellent. The CTEK battery charger is easy to use. I have used it on Optima batteries, which don't charge as well on conventional chargers. It works great. Just hook it up, and it stops when it is finished. 16321



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


So far it looks great. Easy to set up and use. I'm using it to charge two 6 volt batteries hooked up in series. 328741



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


thank's work's good 90944



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Have been very impressed with this product Very easy to use and has saved several batteries that seemed unchargeable I have one mounted permanently in my car trailer, and bought a second one to keep on hand in the garage. Bought a third one for my son 594102



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Using this on battery back sump pump system. Customer service was very helpful when I had questions on which model to order for the application. Thank you. 209839



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


The charger works great in the charge mode. An Optima battery took an overnight charge. And the weekend car also charged overnight. It is now on the maintenance mode. The two types of connections are very helpful. 209671


Comments

The charger works great. And it is easy to use.

Richard F - 07/27/2016

19727

- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


So far so good 553367



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Got a booming radio that tends to kill the battery after a day of hanging out at the gravel bar. This charger I installed under the hood and ran the plug to the front bumper. So I have 2 options. 1. If there is power nearby just plug it in and no worries. 2. At the end of the day when back at the house just plug in overnight so battery is fully charged the next day without needing to leave the truck running to charge back up. 107360



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Real purchaser comment; no bot BS that makes me skeptical of many reviews. CTEK 4.3 lead-acid battery charger/tender product as advertised & researched across several internet sites/blogs arrived well packaged via free shipping and in short time given holiday season. My first-time purchase experience with eTrailer superb; good service and most competitve price found among several retailers 460653



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


This product has performed as advertised. Instructions were fine. I use it on my Lawn Tractor over the winter months. 511949



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Very high quality, compact, easy to use charger with many features. It is perfect for maintaining a charge on batteries that only get utilized periodically but can be used to charge as well. Would definitely recommend both the charger and etrailer.com. 132255


Comments

Still very pleased. Works great!!

Barney B - 05/26/2015

12045

- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


The CTEK 4.3 battery charger is working well for me. I needed one charger that would work for my smaller motorcycle batteries as well as my truck and sports car. The CTEK makes it easy to switch to each application. As usual etrailer delivered quickly. The only caveat is the battery terminal clamps are a somewhat odd shape. They work well on a auto battery but have a bit of difficulty locking on the smaller motorcycle terminals. Not a deal killer at all. 472402



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Just received this product today. I installed it in my Fiat 124 Spyder and it is charging now. Seems to be working OK and correctly 327115



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Love this charger! Still in use on deep cycle battery after 11 months and works great! Best purchase I made for my RV 705595



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Great product and well made 682278



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Have bought 3 of these to date Best charging solution I have ever owned Never worry about overcharging Was even able to give new life to a battery tested as dead / replace This battery is now still going after a year in ongoing service 667757



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


These are great battery chargers I have had one for two years now with no problemo. I just purchased another one for my rv they are a must for a agm battery. 657215



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Too early to tell 614845



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


I installed on my 2017 Polaris ranger, this charger keeps my battery at 100%. I keep it plugged in when not in use. Very easy to install, also on dash of the Polaris the plug snaps right in vacant spot and looks as if it came from factory that way. Very happy with charger! 607801



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Great product and seller. Beats spending $395 at Porsche dealership. 590679



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Purchased 2 CTEK battery chargers and maintainers. They arrived quickly, were well packed, and worked perfectly. Excellent product if you travel for long periods and don't want your batteries to go flat. Very pleased with my purchase and the service from etrailer. Thanks. 585816



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


I was needing a “trickle charger” to maintain my engine batteries on my 2007 Fleetwood Providence 39V. I chose this unit as it is small and I could connect it directly to my batteries by way of the supplied terminals which connect to the charging unit. I placed the charger in the compartment next to the batteries so it would not be directly in the same area as the batteries themselves. I attached the charger to the wall using 3M tape and ran the charging cable through a hole where other cables were going into the battery compartment. I’m hoping this will keep the batteries fully charged should I need to start the motorhome in the cold weather. 585337



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Performs as expected. Compact size is a plus for traveling. I use it regularly ro desulfate my trolling motor batteries. 576179



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Works well 567757



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Very good product. 562782



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


I have used CTEK products before and I am very pleased with its use during the winter months for battery management. This recent order is my second CTEK and I plan not only to use it to maintain battery levels on my C7 corvette , but on other systems as well. Your price and shipping offers are excellent and I would recommend your service to anyone interested in battery chargers. 497062



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


I used this for my boat batteries. 472485



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


The complete charger is for a Mercedes Sprinter Motor Home, Pleasure Way. It works flawlessly in keeping the house battery charged and topped our as needed. Best charger I have found. 425540



- CTEK56674
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Thank you works GREAT 380259



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


With this items I am fully satisfied - thanks for follow up - any time again 351641



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Good price, fast and friendly service. Items arrived on time and well packaged. I'm impressed that etrailer even sent a follow-up email to confirm my satisfaction. I have used the CTEK 3300 charger for over 5 years and it is outstanding. It has done a perfect job of charging/maintaining gel batteries on 3 vehicles and two tractors. Purchased two more to give family members as gifts. Thanks etrailer! 327189


Comments

Outstanding. Works perfect .... Same as day one.

Tom T - 12/23/2017

32223

- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Ordered this item to go with the CTEK battery charger I also ordered. Now I don't have to pop open the hood to connect the CTEK charger to the battery. The items were shipped quickly even with the poor weather conditions we were enduring. I've always liked their price and assistance available for merchandise purchased thru etrailer. Kudos for the staff at etrailer.com. 326852



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Great performance in a light weight small package. Very sophisticated charging options to charge a wide variety of batteries in various temperature conditions. I trust this charger for my best quality batteries. 315287



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Easy to use, kept my battery up all winter without any problems. Would recommend. 313983



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Exactly what I needed etrailer had. Fast delivery everything I ordered was in great condition. Great service. Have ordered from etrailer several times, always on time and is exactly what was ordered. 302707



- CTEK56158
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Works as advertised, no issues 297993



- CTEK56864
by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


I bought two of these based on the recommendations of people on the Jet-Ski forum I'm on. I also found out that Porsche recommends this brand for their vehicles. I use them to maintain the charge in my intermittently used car and Jet-Ski so the chargers are used a lot. In one year of use I haven't had any battery or charger problems. The unit is capable of maintaining a charge and restoring a charge to a flat battery. It is hard to measure the performance of a charger but compared to previous chargers I have used I think it does a great job of keeping the battery functional. 274426


54
73
Show More Reviews

Ask the Experts about this CTEK Power Inc Battery Chargers

Do you have a question about this Battery Charger?


  • Types of Battery Chargers for Auxiliary Battery on Dump Truck/Trailer
  • We do offer battery chargers, including AC-powered unit like NOCO Genius # 329-GEN2 and DC-powered types like Redarc # 331-BCDC1225D, as well as Solar panel chargers like # PTW2997 that help maintain your auxiliary battery whenever sunlight is available. The vehicle wiring kits we sell are generally limited to passenger vehicles to allow them to tow recreational trailers. If you are looking for a heavy-duty wiring kit to deliver power to your dump bed motor this would best be sourced...
    view full answer...

  • Recommended Vehicle to Trailer Battery Charger with Solar Power Option
  • The CTEK battery charger # CTEK56353 is a great charger for when you have shore power, but will not work for a vehicle to trailer battery charger. To charge your trailer battery from your Outback 2.5i, you will need a different type of charger. If you are a fan of the CTEK brand, then you would want the CTEK D250S Dual Battery Charger 12V- 20a, 5 step, Heavy Duty # CTEK40186. This will allow you to use your vehicle battery to charge your trailer battery without draining your vehicle...
    view full answer...

  • Battery Charger for Trailer-Mounted Auxiliary Battery
  • A trailer breakaway battery charger kit like # 20011 will be needed only on a trailer that does have electric drum brakes and a breakaway system like the Hopkins # HM20001. For maintaining a trailer-mounted battery that supplies power to lights, vents, etc you can use the 12V power circuit in the 7-way connector. This 12V feed is carried on the pin at the 1-o-clock position as you view the 7-way socket. Please refer to the linked photo and article. This 12V feed has enough power to...
    view full answer...

  • Can Battery be Charged and Discharged at Same Time
  • While you can't have a battery being charged and discharged at the same time if you were to charge a battery at 1 amp and have a 3 amp accessory attached to it (like an inverter powering something) basically you'd be discharging the battery at 2 amps instead since the charger would be supplying one of the amps for the accessory.
    view full answer...

  • Can a 12 Volt Accessory Circuit of a 7-Way Charge a Trailer Battery
  • The 12 volt accessory pin that is on GM 7-ways is better used as an accessory circuit for trailer lights that operate with a switch, but it can help keep a maintenance charge on a trailer battery that is in good shape. It doesn't have the amperage rating to charge a dead battery though. For charging a dead battery you would want to use a shore battery charger like the CTEK battery charger part # CTEK56353. I attached a review video for this charger for you to check out as well.
    view full answer...

  • Best Method For Connecting The CTEK MULTI US 7002 12V Universal Battery Charger To Battery
  • The CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power, # CTEK56353, is an excellent charger and maintainer. It is maintencence free and utilizes an 8-step system to constantly monitor and maintain 12V battery charge. For connection, I recommend using the quick-disconnect system with the eyelet-terminal cable to permanantly attach to your battery terminals. This will give you the quick plug function and will prevent you from needing to double check...
    view full answer...

  • How is Trailer Battery Charged from Trailer 7-Way Connector
  • If you wanted to run a maintenance charge to your trailer's battery you'll need to run wire directly from the battery's positive terminal to the 12 volt power circuit of the 7-way. You'll want to use 10 gauge wire like part # 10-1-1. There would be no need to wire in a charger as well since just the wire will deliver the maintenance charge. It won't charge a dead battery though. You'd have to use a wall charger for that like the CTEK # CTEK56353 when the trailer is parked.
    view full answer...

  • Comparing CTEK and NOCO Battery Chargers
  • We recently added the NOCO product line to our existing range of battery chargers which has long included CTEK products like # CTEK56353. I have owned one of the CTEK chargers for almost 6 years and it has worked perfectly for me in continuous service, always being on either a motorcycle, lawn mower or car battery 100-percent of the time during those 6 years. Based on that performance I can only give it high marks. The NOCO charger # 329-G15000 for example also provides charging and...
    view full answer...

  • Can a Trailer Battery be Charged with a 7-Way Trailer Connector
  • The 12 volt power circuit of your 7-way would not be able to charge a dead trailer battery, but it can put a light maintenance charge on it so that it stays topped off while you are travelling. The circuit is most likely protected by a 40 amp fuse, but that does not mean that it can provide 40 amps of charging power to your battery. That just means that if something tried to draw more than 40 amps the fuse would pop. For a charger that you could use to charge your battery when it is...
    view full answer...

  • Charging Capacity of 12-Volt Circuit on Vehicle 7-Way Socket
  • The power delivered on the 12V circuit of a 7-way trailer connector is enough to maintain a charged battery while you travel down the road, but this circuit does not have enough juice to re-charge a battery that has been depleted from use. Depleted batteries need a shore-powered charger like one of the CTEK units, such as # CTEK56353. Solar battery chargers like Performance Tool # PTW2997 can be used to provide a trickle charge to a battery mounted on a trailer but I do not recommend...
    view full answer...

  • RV Battery Charge From 2015 Ford F-250 With Towing Package
  • How to answer your questions largely depends on how your system is wired. If it is wired to charge when being towed, it will have a slow maintenance charge as long as the vehicle is running. If you leave your vehicle plugged in overnight and it has a solenoid in line, it won't effect your truck but will not charge your trailer battery. If you don't have a solenoid like the Tow Ready Battery Isolation Solenoid # TR118665, then leaving the trailer plugged in could pull power from your...
    view full answer...

  • Parts Needed to Wire a 2012 Volkswagen Routan with a 7-way Socket for Trailer Brake Operation
  • If you already have a 4-pole flat trailer connector on your 2012 Volkswagen Routan, such as the plug-and-play Tow Ready # 118490, then to install a trailer brake controller you'll just need to add our trailer brake controller installation kit # ETBC7. The ETBC7 includes all the related parts you'll need to install a trailer brake controller such as the reliable and popular Tekonsha Prodigy P2 # 90885. I have linked both a video and article that cover the process of installing the ETBC7....
    view full answer...

  • Shore Power and DC Battery Chargers for Trailer-Mounted Battery Powering Electric Jack
  • For the battery on your trailer that powers your electric jack the best way to charge it fully is with a shore-power AC charger like the CTEK # CTEK56353. Then while you are on the road the maintenance level 12V feed from the Ram's 7-way will keep it topped off. I own one of this particular charger and mine has worked great for almost 4 years of non-stop use. The trouble with running cables from your truck's battery or alternator all the way to your trailer battery is that they have...
    view full answer...

  • Where to Find Brake Signal for 2014 Subaru XV Crosstrek for Brake Controller Install
  • The most reliable way to find the brake light signal to use for installing a brake controller is to use a circuit tester like the part # PTW2993 to test all of the wires going to the brake pedal switch for voltage only when the brakes are applied and none when released. That would be the correct circuit to use for the red wire of your brake controller to install it in your 2014 Subaru XV Crosstrek. 10 gauge wire run from the 12 volt accessory circuit of your 7-way to the positive terminal...
    view full answer...

  • Troubleshooting Low Battery Error Code on Blue Ox Patriot Supplemental Braking System
  • There's no way to avoid accumulating miles on a vehicle that's being flat towed. Sometimes you get lucky and if the vehicle key isn't on the miles don't add up but other times there's no way to get around it. And any attempt to will most likely get you in some trouble. The 04 low battery alert code of the Blue Ox Patriot # BRK2019 indicates that either the towed car's battery is depleted or that there is another issue such as a dirty 12V power outlet that is not passing enough power....
    view full answer...

  • How Large of a Battery is Needed to Keep Power Tools Running?
  • In regards to a battery of choice, there is not one style in particular; the 12V with the largest amp hours that fits where you are mounting it is your best option. I took a look at the D3100 you referenced and the specs said it gave 110 amp hours, which is pretty hefty. The only other thing you can do, if a battery with a lot of amp hours isn't getting the job done, is use a portable generator such as # 333-0002.
    view full answer...

  • Troubleshooting 5th Wheel Landing Gear That Blow 30-Amp Fuse
  • If the bevel gears/gearbox for the dual-motor landing gear on your 2011 Keystone Laredo 266RL 5th wheel were badly worn or damaged you would most likely be able to hear it. These conditions typically cause a good bit of noise as the jacks try to operate, especially when extending to lift the trailer weight when the motors and mechanical components are working their hardest. If there was no accident or a definite incident of damage to the jacks then my suspicion for your fuse blowing...
    view full answer...

  • Can Breakaway Kit Battery Be Charged from Main Trailer Battery Without Depleting It
  • It is permissible to have your trailer breakaway and water pump wired in the way you describe - under certain circumstances. As long as your water pump battery is substantially larger in current capacity than the breakaway battery, and as long as BOTH batteries are in good condition and fully charged before you head out, then the 12V maintenance charge from your vehicle 7-way wiring harness should be able to maintain both batteries without either becoming depleted. I suggest you apply...
    view full answer...

  • Parts Needed to Have 12V Trailer Battery Charging Circuit on 7-Way Connector
  • The charging circuit on a vehicle 7-way style connector, the one that would deliver a maintenance charge to the trailer battery while you tow, is completely separate from the 4-wire brake controller wiring. This trailer charging circuit is usually carried on the contact at the 1-o-clock position as you look at your van's 7-way socket (please see photo). Note this circuit deliver a maintenance-level charge to keep a charged battery topped off, but it does NOT deliver enough juice to charge...
    view full answer...

  • Can I Charge the Battery for a Winch On My Trailer From My 2016 Ford F-150 While Driving
  • I do have a few different options for you, but charging your trailer battery from the battery on your 2016 Ford F-150 while driving is not what I recommend doing. The 7-Way on your F-150 does not have the capability to charge a large enough battery to run your winch. The only kind of battery that it can charge is something like a small breakaway battery. You would have to find wiring that is big enough to carry that much power and run it straight to the battery on your trailer. The first...
    view full answer...

  • Options for Mating 4-Pole Flat Vehicle Wiring to Jayco 6-Pole Square Trailer Wiring
  • The 4-pole to 6-Pole Jayco wiring adapter # 30104 supports only the 3 circuits on the 4-pole but converts them to the connector format used on older Jayco trailers. A 4-pole wiring setup has a ground and three circuits; right stop/turn, left stop/turn and tail lights. The Jayco connector has a ground and 5 circuits so using this adapter would let the basic lighting signals from the Explorer's 4-pole reach the trailer but the other functions supported by the Jayco plug would NOT have any...
    view full answer...

  • How to Wire 12V Battery in Enclosed Trailer to Power Trailer Lights Independent of 7-Way Connection
  • You are correct in your description of how to wire in a new auxiliary battery in your enclosed trailer. You will take the 7-Way's 12V power feed and route this to the positive terminal on the auxiliary battery, and you will ground the second battery to the trailer frame, as you described. You might refer to the linked article on trailer wiring to see the usual wiring configurations on trailer connectors. If you want to protect your vehicle battery from accidental discharge (such as if...
    view full answer...

  • How to Wire the 7-Way Charge Wire to Trailer Winch Battery and Protect the Vehicle Battery
  • For the best protection of your vehicles battery and wiring we recommend installing a 40 amp circuit breaker, # PK54540, inline on the charging wire going from your vehicle battery back to the trailer connector on your vehicle. If your vehicle has a factory 7-Way connector the charge line will be protected by a fuse in the power distribution box under the hood so adding a circuit breaker would not be needed. If you are concerned about drawing power from the vehicle battery when the vehicle...
    view full answer...

  • Things to be Aware of When Charging a Battery from an Alternator
  • The biggest thing to be aware of is that your alternator will more or less provide just a maintenance charge for your batteries. If you don't have anything drawing power it may (very slowly) charge your batteries but the best way to keep your batteries charged is by using a charger like part # CTEK56353 when you have access to AC power. The next best thing is for you to use the Redarc In-Vehicle BCDC Battery Charger # 331-BCDC1240D along with a solar panel like part # 34273836. Again,...
    view full answer...

  • Charging Trailer-Mounted Accessory Battery Using Tow Vehicle Battery
  • Using the vehicle electrical system to charge a discharged trailer-mounted battery is not feasible due to the physics involved. The distance between the batteries along with the fact that the accessory battery is passive and will not be pulling any power through the circuit will prevent enough power from the tow vehicle electrical system from reaching the accessory battery and effectively charging it. A larger wire like the 8 gauge wire you mentioned would allow a 12 volt accessory,...
    view full answer...

  • Battery Maintainer Recommendation for Breakaway Battery for Trailer
  • Maintaining the battery with the charger part # CTEK56353 would be a great option to allow you to not have to keep replacing batteries. This will keep the battery topped off and in good shape.
    view full answer...

  • Parts Needed to Charge a Trailer Battery for a Winch
  • First, the wiring on a trailer connector can provide a maintenance charge to a 12 volt battery on a trailer but it will not be able to fully charge it. The 12 volt circuit on a 7-Way is already circuit protected so a separate fuse or breaker should not be needed. There is a way you can provide a charge to the battery from the truck. You would need to equip the truck and trailer with separate single pole connectors independent of the 7-Way. For the trailer side, you would need Pollak...
    view full answer...

  • Parts Needed to Charge Battery of 5th Wheel Trailer While Towing Through 7-Way
  • If you have a 7-way trailer connector the pin in the 1:00 position carries the 12 volt accessory circuit which is what normally charges a trailer battery. It would need to be ran to the positive post of your battery though. You should note that this will only really provide you with a maintenance charge for the battery and won't keep a large battery charged if depleted. I attached a diagram that shows how 7-ways normally run to brake controllers and batteries. If you need a charger...
    view full answer...

  • Break Away System Replacement Battery Recommendation for a Circle J Horse Trailer
  • The battery that you use for a break away system needs to be able to power the trailer brakes on full for 15 minutes. A 12 volt battery rated for 5 amp hours would work but if you had 3 axles each with brakes you would benefit more from a 9 amp hour battery. Even a 12 volt car battery could be used but a battery this large would not charge up through the 12 volt circuit coming through the trailer connector. The batteries only that we carry, # HM20008 and # TK2023 are both rated for 5...
    view full answer...

  • Causes for Low Battery Error Code from Blue Ox Patriot Braking System BRK2019
  • The Blue Ox Patiot supplemental braking system # BRK2019 and the original Patriot model BRK2012 do have internal batteries. Based on the error code you're seeing you have the original model according to my Blue Ox technical contact. The 04 low battery alert code indicates that either the towed car's battery is depleted or that there is another issue such as a dirty 12V power outlet that is not passing enough power. The cigarette lighter outlet that powers the Patriot must output at least...
    view full answer...


Do you have a question about this Battery Charger?




  • Why etrailer.com?

    At etrailer.com we guarantee:

  • Highest quality battery chargers for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate battery charger information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Satisfaction Guarantee
    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Expert Research:
Jeffrey L
Video Edited:
Andrew L
Updated by:
Sarah W
Updated by:
Daron K

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.