Menu Icon
fall hauling headquarters

Price: $314.99

In Stock

CTEK MULTI US 25000 High-Capacity 12-Volt Battery Charger with Pulse Maintenance and Backup Power

Item # CTEK56674

lowest price pledge

Our Price: $314.99

Battery Chargers

This item qualifies for Free Shipping

Shipping Weight: 5 lbs

Estimated Delivery: Thursday, September 27

Enter a zip code for a more accurate estimate.

Quantity: 

Only 4 in stock. Order soon.
Battery Chargers CTEK56674 - AC to DC - CTEK Power Inc
zoom in icon
zoom out icon
pop out icon replay 360 icon
horizontal rotate icon

Product Images

Battery Chargers CTEK56674 - AC to DC - CTEK Power Inc
CTEK MULTI US 25000 High-Capacity 12-Volt Battery Charger with Pulse Maintenance and Backup Power 12V CTEK56674
CTEK Power Inc Charges/Maintains Battery Chargers - CTEK56674
CTEK Power Inc Battery Charger - CTEK56674
CTEK MULTI US 25000 High-Capacity 12-Volt Battery Charger with Pulse Maintenance and Backup Power 12V CTEK56674
CTEK56674 - Wall Outlet to Vehicle Battery CTEK Power Inc Battery Chargers
CTEK Power Inc 500 Ah Battery Chargers - CTEK56674
CTEK Power Inc Battery Chargers - CTEK56674
CTEK Power Inc Battery Charger - CTEK56674
CTEK56674 - Wall Outlet to Vehicle Battery CTEK Power Inc Battery Chargers

Videos


  • Battery Charger
  • CTEK Power Inc
  • Car/Truck/SUV
  • Boat
  • Wall Outlet to Vehicle Battery
  • AC to DC
  • 12V
  • Charges/Maintains
  • 500 Ah
This powerful, 8-step charger uses a patented pulse-maintenance system to charge, maintain and help recondition 12V batteries. High-output capability can charge batteries quickly. Call 800-298-8924 to order CTEK Power Inc battery chargers part number CTEK56674 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 25000 High-Capacity 12-Volt Battery Charger with Pulse Maintenance and Backup Power. Battery Chargers reviews from real customers.


  • All Info
  • Reviews (50)
  • Q & A (7)
  • Videos (1)
  • Photos
  • Why etrailer?

CTEK Power Inc Battery Chargers - CTEK56674

This powerful, 8-step charger uses a patented pulse-maintenance system to charge, maintain and help recondition 12V batteries. High-output capability can charge batteries quickly.


Features:

  • 8-Step system constantly monitors and maintains 12V battery charge
    • Performs reliably and is virtually maintenance free
    • Works great for batteries that require fast charging, such as those found in RVs, boats and cars
      • Handles banks of batteries better than other chargers with lower amperage outputs
    • Won't overcharge or undercharge like typical trickle chargers
    • Switches automatically to pulse-maintenance phase after full charge has been reached
    • Reduces risk of overheating, sulfation and premature battery failure
  • Included temperature sensor adjusts charging voltage to battery temperature
  • 3 Charging modes
    • Normal: performs normal charge cycle
    • Supply: provides constant voltage
      • Maintains vehicle settings during battery changes
      • Provides constant power source
      • Keeps batteries constantly at 100-percent charge
    • Recond: recovers highly stratified batteries
  • Clamp-terminal cable temporarily attaches to battery terminals
  • Safe, versatile design
    • Approved for indoor and outdoor use
    • Prevents reverse-polarity mistakes
  • Includes charger, owner's manual and protective case


Specs:

  • Application: most starter and deep-cycle, 12V lead-acid batteries
    • Includes wet, MF, AGM and most gel batteries
    • Charges batteries with capacities from 50 Ah to 500 Ah
  • Charge cycle: 8-step, fully automatic charger with pulse maintenance, Reconditioning and Supply modes
  • Input voltage: 110V AC - 120V AC
  • Charging voltage:
    • Normal charge: 14.4V
    • Recondition mode: 15.7V
    • Supply mode: 13.6V
  • Charging current: 25A max
  • Dimensions: 9-1/4" long x 5-1/4" wide x 2-1/2" tall
  • 2-Year warranty


CTEK MULTI US 25000 bulk charging time chart

This CTEK charger comes with a battery temperature sensor and clamp-terminal cables for temporary connections.


battery temperature sensor and clamp-terminal cables for temporary connections

CTEK MULTI US 25000 Charging Process

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. Superior and safe, this 8-step process (plus Supply Mode) uses switch-mode, pulse-maintenance technology.


CTEK US 25000 charging process chart

  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 triggering 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 with a constant current of 1.5A and 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. During this stage, the charger maintains the battery at the optimum charge level of 95 percent to 100 percent. It recognizes any drop in voltage and sends a corresponding pulse of current to keep the battery properly charged. Pulse maintenance can be continued for months at a time.

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


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.


Note: Anti-spark function is not active in Supply Mode.


Protects the Battery

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


Won't Cause Overcharging or Overheating

Overcharging can cause gassing, which can lead to acid concentration and corrosion of the battery's lead plates. It can also cause the battery cells to dry out ("boil dry"), which can allow the battery to overheat and 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 with 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 Using 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, but it also includes a desulfating step that can often "revive" a lightly sulfated battery. It accomplishes this with carefully monitored electronic pulses of energy that help to break down the lead sulfate crystals, allowing the battery to accept a charge once again.


Ensures Consistent Charging with Low Ripple-Wave Percentage

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, ensuring a consistent charge. 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 with 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. Because the Recond (reconditioning) mode uses a higher voltage than other charging modes, using it may cause water loss in batteries and possibly shorten the life of your electronics. Check with vehicle manufacturer and battery supplier for information.


Keeps You Informed

Indicators on the face of the charger light up to show the charging stage.


Closeup of indicator panel of CTEK MUS 25000Descriptions of indicator panel of CTEK MUS 25000

Additional Specs

  • Current: 6.0A rms (at full charging current)
  • Back-current drain: less than 2 mAh per month
  • Ripple wave: less than 4 percent variance
  • Ambient temperature: -4 F to 122 F
    • Automatic reduction of power at increased ambient temperature
  • Insulation class: IP44


56-674 CTEK MULTI US 25000 High Output 12-V 8-Step Pulse-Maintenance Lead-Acid Battery Charger

CTEK56674 Installation InstructionsInstallation Details CTEK56674 Installation instructions


Video of CTEK MULTI US 25000 High-Capacity 12-Volt Battery Charger with 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 25000 Battery Charger Review

Today we're going to be working with the CTEK MULTI US High-Capacity 12-Volt Charger, Part Number CTEK56674. Now, to begin our install we need to get our battery clamps onto the battery so go ahead and remove the battery cover. Now our negative terminal's already exposed. Go ahead and expose the positive battery terminal by removing the cap. Starting with the red positive battery terminal clamp, we'll put it on the positive battery terminal. Then our negative battery terminal clamp will go along to the negative battery terminal.

The third lead here is a temperature sensor. We're going to leave that here on the battery to prevent from overcharging. Now that we have our clamps in place, go ahead and take the cord for our charger and plug it in. That's to plug directly into the wall outlet but if you need to plug it into an extension cord, double check the manufacturer's recommendations for the length and gauge of the extension cord for proper operation. Now once it's plugged in, using the mode button, we can change from the normal charge rate to a supply or reconded charge rate. We're going to go with the normal charge rate.

As you can see it's already charging and it'll automatically move up as the battery becomes completely charged. Now, with our battery completely charged, we're ready to hit the road. That does it for the CTEK MULTI US 25000 High-Capacity 12-Volt Battery Charger, Part Number CTEK56674. .


Customer Reviews

CTEK MULTI US 25000 High-Capacity 12-Volt Battery Charger with Pulse Maintenance and Backup Power - CTEK56674

Average Customer Rating:  5.0 out of 5 stars   (50 Customer Reviews)

This powerful, 8-step charger uses a patented pulse-maintenance system to charge, maintain and help recondition 12V batteries. High-output capability can charge batteries quickly.

- CTEK56674

by:


Thank you works GREAT 380259



- 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


I really like the recondition feature on this charger. It reconditioned and charged my aging battery very promptly. I also like the compact size of the unit. Great product. 228077


Comments

My 4 year old truck battery started losing charge after sitting a few days. I removed it, checked the water which was a bit low, put it on recondition mod and recharged. It has been working like a new one for the past two months.

Bill Y - 09/27/2016

21273

- CTEK56353

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


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


Comments

Still works great, no issues.

Mike N - 04/03/2016

17363

- 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

- 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


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



- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


I have another trickle charger that I've used for years on my older Harley, but it is a single-mode charger. I decided to get a second one so I do not have to constantly move the one from the bike to the lawn mower to the car, etc and chose this one based on excellent reports from my co-workers who also use this C-TEK unit. Having had this in use for about 3 weeks now I can report that it works well, offers several modes, including the winter storage mode I am using now, and came with very detailed instructions and plenty of adapters for various applications. I'd buy this again. 114205



- CTEK56158

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


The CTEK 3300 is being used to keep my hot rod battery charged because it's not a daily driver. It took about one day and then the amber light turned green and has stayed that way for a month now. All I do is unplug the unit from the car and it starts right up. It sure is nice to be able to leave this one hooked up to the car in place of my older one that I would only use for a few hours at a time. So far I'm very happy with it and I would buy another one if I had two batteries to keep charged. 61891



- CTEK56353

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


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



- 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


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

- 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


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


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



- CTEK56353

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


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


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



- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


The reconditioning mode on the 4.3 did in fact recondition my car battery when simply charging it with a CTEK 3.3 didn't. I conclude this based on the better retention of charge after the 4.3 than after the 3.3. As always, etrailer's service was prompt and courteous when I ordered a second 4.3 DS 74922



- CTEK56353

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


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



- CTEK56158

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


The Ctek charger is small, but very effective. I have a vehicle that I only drive once or twice a month. Now I don't have to worry about the battery being dead and having to have the computer reprogram after jumping it off. Works great. Thanks Etrailer!! 171103



- CTEK56353

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


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



- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


After a recommendation from our mechanic, we purchased two CTEK trickle chargers and are extremely excited about how they will benefit the battery life of these cars over the next several years. All we can say now is, so far...so good. 151954



- CTEK56158

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Needed a way to keep my Scag's battery topped off in between mowings. Love the ability to hardwire an adapter to the battery that I can quickly connect or disconnect from charger. Works great and quick shipping too. Thanks etrailer! 153569



- 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



- 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



- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


This CTEK charger got my large automotive battery up to full capacity in no time, and is maintaining it perfect through cold winter storage. As usual, prompt & well packaged delivery from etrailer! 110746



- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Powerful compact unit. Boat battery after winter storage charged right up. Even used the charger for smaller rechargeable batteries used in wireless speakers. Stores away very neatly in tool box 252754


Comments

This continues to be a great product. Have charged things like house generator battery, DR road grader battery, Yamaha Rhino battery, a variety of rechargeable solar items. Great compact item. Thanks for asking Please note, I really like shopping at etrailer. Great service quick delivery, plus I don’t have to drive all over town. Also great “how to” video’s

Thomas - 01/26/2018

33753

- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Purchase battery charger to charge batteries in my new trailer. Charged batteries to full capacity and went into float mode. Very satisfied with product and would highly recommend it to others. 158388



- 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



- CTEK56158

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Product arrived a day early, I immediately put it to use on a weak battery. Easy to assemble and use. Service and follow up by etrailer has been excellent. 271294


Comments

Its been a year, this charger gets infrequent use however, when I need it it works simply and effectively. Very satisfied.

Steve R - 07/14/2017

26093

- 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


Easy to follow directions, battery is charging at this present moment. Lightweight small and convenient. I have no doubt that it will satisfy my needs. 166722



- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


I have ordered products from etrailer for years and have never been disappointed in the products , price or promptness of delivery. 72365



- 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



- 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



- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Have ordered from etrailer in the past, fast shipping and battery charger seems to operate fine! 60127



- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Exactly what I needed to maintain several different size batteries at the same time. 117061



- 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



- 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


Great charger's that are made by CTEK E-Trailer's service is great and fast. 18284



- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Arrived quickly and Works like a charm on my deep cycle, trailer battery. 176255



- CTEK56158

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Very well made. Seems to have every needed option. 103020



- CTEK56353

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Excellent product but Made In China. 167002



- CTEK56158

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Great design / features, easy to use. 244072


Comments

Yet another good reason I do business with etrailer, you actually follow up. You do know that most companies talk about doing that but never do, right ? The CTEK still working great, one of the best things about it is the level of charge monitor. All I have to do is look and see if its a green or yellow flashing LED and charge if yellow.

J - 02/11/2018

34584

- CTEK56158

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


I used this for my boat batteries. 472485



- CTEK56158

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Works as advertised, no issues 297993



- 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


Very good product. 562782



- CTEK56864

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


So far so good 553367



- CTEK56353

by:

Review from a similar CTEK Power Inc MULTI in Battery Chargers


Good product 546444


53
53

Ask the Experts about this CTEK Power Inc Battery Chargers
Do you have a question about this Battery Charger?


  • Recommended Battery Charger to Maintain Four Batteries Wired in Parallel
  • I spoke with my contact at CTEK and to maintain a full charge in extreme weather he recommended the CTEK MULTI US 25000 High-Capacity 12-Volt Battery Charger, part # CTEK56674, for your Freightliner truck with a bank of 4 starting batteries 12v wired in parallel. He strongly advised against going with anything less than the 25000. After the batteries reach full-charge, this charger switches automatically to pulse-maintenance to maintain the charge. I have included the installation instructions...
    view full answer...

  • Battery Charger for Odyssey 12 Volt AGM Batteries
  • The best chargers for 12 volt batteries are going to be the CTEK 8-step chargers that not only charge the batteries but also maintain and recondition batteries. I recommend the CTEK 7002 charger # CTEK56353. I own a similar CTEK charger and it works beautifully. It is rated for batteries rated for 14 to 225 amp hours. I have included a link to a video review of this charger for you. For batteries greater than 225 amp hour ratings I recommend the CTEK 25000 # CTEK56674. It works for batteries...
    view full answer...

  • Recommended CTEK Battery Charger for Deep Cycle Batteries
  • The CTEK charger I recommend for deep cycle batteries is their MULTI US 25000 High-Capacity 12-Volt Battery Charger # CTEK56674. This unit features an 8-step charging system and high output for faster charges. It can bring a 100-Ah battery to 80-percent charge in only about 3 hours. The unit also features a mode for reconditioning highly stratified batteries. Although this charger is rated for indoor and outdoor use I would not mount it inside the battery box due to the potential for...
    view full answer...

  • Recommended Battery Charger That Can Charge And Maintain Parallel Bank Of Batteries
  • If you are needing a battery charger that uses a 110 v circuit to charge the batteries I recommend the CTEK MULTI US 25000 High-Capacity 12-Volt Battery Charger, part # CTEK56674. This will charge banks of batteries that have been connected in parallel. After the batteries have reached full-charge, this charger switches automatically to pulse-maintenance to maintain the charge. I have attached a drawing that shows how parallel batteries are attached to one another. If you are using a...
    view full answer...

  • How to Charge Eight 6-Volt Batteries in Series/Parallel
  • I do have an option for you to charge eight 6-volt batteries but the batteries will need to be split into two banks with four batteries in each bank. In order to charge all eight batteries with four banks you would need an AC to DC battery charger rated for at least 832 amp hours (AH). Unfortunately we do not have a battery charger rated for that high of a capacity but if you decide to split the batteries into two banks with four batteries then you could use the CTEK MULTI US 25000 High-Capacity...
    view full answer...

  • Recommended 3,000 Watt Powered Inverter for Indoor Use
  • Since you live in an apartment and require 3,000 watts of power, I recommend taking a look at the Goal Zero Yeti 3000 Lithium Portable Power Station part # 287-38012 which is an electric inverter that can be charged by both AC current and through the use of an external solar panel. If you plan to charge the inverter via solar panel, I recommend using the Goal Zero Boulder 200 Briefcase Solar Panel part # 287-32409. To increase charging time in low light and varied temperatures, the Solar...
    view full answer...

  • Most Efficient Way To Charge 50 Amp Hour Batteries
  • I spoke with contact at CTEK and they informed me that the CTEK MULTI US 25000 High-Capacity part # CTEK56674 only has one charge rate, which is a bulk charge. It does however have a maintenance charge but should not be used for charging the entire battery but rather to ensure the battery stays charged. Therefore, the slowest charge rate for this battery charger is bulk charge. If you are looking to charge a battery smaller than 50 amp hours, I recommend going with the CTEK MULTI US...
    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:

Edited by:
Frances L
Written by:
Raymond P
Expert Research:
Adam R
Photos by:
Sam P

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.



Product Experts Available Now!

Call 800-298-8924


^
About Us
photos and videos
1,056,204

Original Photos & Videos

Produced to make sure you know what you are getting and you get exactly what you need.

installations
35,570

Installations Completed

To make sure products work and fit the way they are supposed to.

etrailer call center
2,476,511

Phone Calls & Emails Answered

1,125,924 phone calls and 1,350,587 emails to help find the right solution.

etrailer training
400+

Average Hours of Product Training

We get to know our products firsthand so experts can better help you.

etrailer service
71

Years of Quality Customer Service

Assisting our neighbors and customers, face to face at the counter.

etrailer experts
193,357

Pages of Expert Information

Created to make sure you have all the answers to your questions, from real experts.