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Expert Answers about Ctek Power Inc

  • How to Wire Two 6-Volt Batteries In Series to Double Output Voltage
  • To wire two 6-volt batteries in series to produce 12-volts, you would connect the load to the positive terminal of battery # 1. Connect the negative terminal of battery # 1 to the positive terminal of battery # 2. Ground the negative terminal of battery # 2. I have produced a diagram showing the connections for you.
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  • How to Connect two 12 Volt Batteries and Still have 12 Volts Output
  • There are two ways to wire up two batteries. One way doubles the volts of the two batteries and the other keeps the same amount of volts. In parallel the voltage stays the same and in series it is doubled. Check out the diagram for more info.
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  • 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 # CTEK56864. I have owned this CTEK charger for almost 4 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 4 years. Based on that performance I can only give it high marks. The NOCO charger # 329-G15000 for example also provides charging and reconditioning...
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  • Charging Auxiliary Battery from Car Cigarette Lighter or 12 Volt Auxiliary Plug Connector
  • The 12 volt auxiliary power connections are great for charging a smart phone or running an auxiliary accessory like a DVD player, but these circuits do not have the capability of charging an auto or marine style 12 volt battery. The auxiliary may be able to provide a small maintenance charge, but if the battery is running certain appliances while in transit, this circuit will not be able to charge up the battery. The best solution is to use a battery charger, like # CTEK56158. This...
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  • Charging Six 6-Volt Batteries in a 12 Volt System with 1 Battery Charger
  • You can choose multiple batteries provided they are connected in parallel to remain a 12 volt system. You will connect the positive terminal at the first battery positive post and the negative terminal to the first battery negative post. If you have 2 banks of 3 batteries, you would have to separate the 2 banks of batteries and charge each set of 3 separately. You will want to use a larger charger that can handle a higher ah rating. The CTEK MULTI US 7002 12-Volt Universal Battery Charger,...
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  • How to Charge 12 Volt Trailer Battery
  • The power that the 12 volt battery on your trailer receives from the 7-way connector is enough to maintain its charge, however it will not be sufficient for charging the battery back up after use. The voltage drop you experienced from charging your phones and drone batteries was simply maintained on during your drive home. To be able to fully charge the trailer battery, I recommend using the CTEK Multi US 3300 12-Volt Universal Battery Charger # CTEK56158. This can be used to fully...
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  • Comparing CTEK D250S and SmartPass vs Redarc DC-DC Charger
  • I reached out to my contact at CTEK and the CTEK D250S Dual Battery Charger 12V- 20a, 5 step, Heavy Duty # CTEK40186 does utilize the Maximum Power Point Tracker (MPPT) as well. When partnered with the Smartpass # CTEK56676 you will be able to run your fridge/freezer as you stated. The Redarc In-Vehicle BCDC Battery Charger # 331-BCDC1240D will also be able to accomplish this. I personally lean to the Redarc # 331-BCDC1240D and also recommend using the fuse kit # 331-FK60.
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  • 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...
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  • Charging an Auxiliary Battery and Dual Trailer Batteries with the CTEK Battery Charger
  • Yes, charging the auxiliary battery in the engine compartment and helping to maintain the two 12 volt batteries, that are connected in parallel, in the camper with the CTEK Battery Charger, item # CTEK40186, is possible. Essentially this charger is boosting the input signal from the charging source. The best source is the vehicle alternator. If the charging source is the vehicle alternator the D250S will boost the charge to the auxiliary battery without affecting the charge going to...
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  • Is it Safe to use a CTEK Battery Charger for Long Periods of Time on a Stored Vehicle
  • You should have no problem setting this battery charger and leaving it for months on end, unattended. The CTEK Battery Chargers work very differently than the old, traditional battery tenders. The old tenders used a trickle charge. Basically they constantly applied a little bit of power. This wastes electricity and can lead to some lead acid batteries overflowing, which is a big problem. The CTEKs do not trickle. Instead they detect that the battery has lost some charge. Then the...
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  • How to Connect Two 6 Volt Batteries and a 12 Volt Battery Together and Have 12 Volts
  • I attached a picture that shows how to run batteries in both series and in parallel. You will need to wire up the 6V batteries like the picture on the left so that they would be in series and at 12 volts. To connect a 12 volt battery to that circuit you would need to run the positive post of the 12v battery to the positive side of the battery run on the in series batteries. Not the one that is connecting the two batteries, the one that would be the output of the two in-series batteries....
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  • Powering Hydraulic Dump on Dump Trailer
  • If you are looking for something to power the dump on your dump trailer, I highly recommend an independent battery specifically for powering the dump trailer. We have a few different options for charging the battery on the dump trailer. Powering the dump off of the vehicle battery may put too much draw on the vehicle battery. One way you could charge the battery to power the dump trailer is using a CTEK Universal Battery Charger, such as # CTEK56158. This battery charger maintains and...
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  • 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...
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  • Recommended CTEK Battery Charger for Marine Battery Running Backup Sump Pump
  • What you are wanting to do is certainly possible, but because the # CTEK56158 does not have a maintenance mode, it could not be permanently connected to the battery and forgotten about. My contact at CTEK tells me that their 7002 model, part # CTEK56353 does have a maintenance mode and could be continuously used to maintain your marine battery while remaining connected to the battery, and while the battery remains connected to the pump. Once the charger senses a voltage drop in the...
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  • Using an Auxiliary Vehicle Battery to Run 12 Volt Power on a Trailer
  • The issue is that if you have batteries mounted under the hood of the truck and you are trying to use the electrical system of the batteries to charge a trailer battery you will not be able to achieve sufficient current to charge up the battery, only maintain the charge that is already in it. Using the 12 volt power circuit on a 12 way will accomplish this task. You would route a wire from the 12 volt pin from the back of the trailer side connector to the positive terminal of the battery...
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  • Adding 12 Volt Power Outlet in a Camper for an Electric Blanket that Plugs Into a Cigarette Lighter
  • A very simple solution wou8ld be the Battery Adapter - 12-Volt DC Cord to Battery Clips, # A-203. Connect the battery clip ends to the battery and plug in your electric blanket in the 12 volt end. Depending on where you will have a battery, the 3 foot cord may or may not be long enough. For a more permanent solution you can mount the Hopkins 12-Volt Power Socket with Power Wire and Fuse Assembly, # HM55115. It comes with an extra 17 feet of wire to connect to a battery and includes an...
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  • What Charger to Use for 6-Volt Golf Cart Batteries
  • It is possible to use a 12-volt battery charger like the CTEK MULTI US 3300 12-Volt Universal Battery Charger # CTEK56158 that you referenced with 6-volt batteries only under specific conditions. Two batteries at a time can be given a maintenance charge from a 12-volt charger provided they are wired in series to present a 12-volt load to the charger. They also have to be in good condition and fully charged to do this. You cannot charge depleted 6-volt batteries with a 12-volt charger. My...
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  • Will Trailer Drain Battery If Left Hooked Up To Tow Vehicle Overnight
  • Leaving anything hooked up for power will cause a drain on your towing vehicle battery. The 12V accessory line on your trailer connector is designed to maintain a battery on your trailer. You may want to consider installing a battery on your trailer and use a battery charger like part # CTEK56158 to charge the battery when land power is available. This would make sure your towing vehicle battery stays charged when you need it.
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  • Battery Charger Recommendation for Charging 2 6-Volt Batteries
  • You need to find out if the 2 6-volt batteries at a time are wired in series or in parallel. If they are wired in parallel then the batteries will have an output voltage of 6-volts and would need a CTEK UC 800 6-Volt Battery Charger # CTEK56191. If they are wired in series the output voltage of the 2 batteries will be 12-volts. The CTEK Multi US 7002 12-volt Universal Charger # CTEK56353 that you referenced would be an excellent choice if this is the case. I attached a review video...
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  • Troubleshooting a Constant Blinking Power Light on the CTEK MUS 4.3 to Recondition a Battery
  • I have confirmed with my contacts at CTEK and the green power indicator light should be continually flashing during the reconditioning or charging process. If it is not flashing then the charger is not recognizing the battery. This could be due to an bad connection or a completely dead battery. I recommend checking the connection points on the battery and make sure that they are secure, weather you are using ring terminal or clips, please make sure that you have a solid connection....
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  • How to Charge Multiple Optima Batteries with the CTEK 7002 # CTEK56353 Battery Charger
  • I Contacted CTEK to be sure that I could give you the correct information on charging your 4 Optima Yellow Top batteries. He said that as long as the batteries are connected in parallel, still a 12 volt system, you can use the CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power, item # CTEK56353, to charge all 4 batteries at the same time. He also stated that the CTEK MULTI US 7002, is the charger that they recommend for the Optima Yellow Top and is...
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  • How to Power Interior Lights on a Trailer Without Being Connected to a Tow Vehicle
  • I do have a solution for your situation, however, I do not recommend running two power sources to the same circuit on your trailer, this could cause a short. Instead, you will want to run the #4 wire from the 7-pin trailer connector to the positive post of the trailer battery. Next, connect the wire from the battery in the fuse box to the same location that the power wire from the trailer connector was connected to for the interior lights. This will put a 15-amp fuse between the battery...
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  • Battery Charger for a Trailer Battery on a Dump Trailer
  • For your larger battery, I do recommend the CTEK MULTI US 3300 12-Volt Universal Battery Charger, part # CTEK56158. This charger is designed for larger batteries like the one on your trailer. The 12-volt accessory circuit on your 7-way trailer connector can be used to maintain a charged battery, but it won't have enough push to charge a discharged battery.
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  • Recommended Charger And Wiring To Charge Trailer Battery With Towing Vehicle Battery
  • There is a way to charge the battery on your trailer with your vehicle. This is done by using the CTEK D250S Battery Charger # CTEK40186. This can be attached to the alternator on your vehicle and if you have the proper gauge wire, will provide a charge for the trailer battery. I also recommend the wiring kit # SW2008. This uses 2 AWG wire, which will be sufficient for charging the battery over a long distance. This wiring kit has 25 ft of wiring capable of handling the power you need...
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  • How to Semi-Permanently Install CTEK 3300 Charger CTEK56158 in C5 Corvette
  • The CTEK 3300 12-Volt Universal Battery Charger, part # CTEK56158, can be installed semi-permanently on your Corvette by using the included harness with ring terminals. This part of the charger kit is shown in the linked photo. I own one of these CTEK chargers and it works great for keeping my old Harley's battery topped off. You will wire the two ring terminals to your battery using the hardware already on it. Then when its time to garage and charge up the 'Vette you'll just need to...
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  • Can a CTEK Battery Charger be Used to Charge a Deep Cycle Battery While Using Lighting in a Trailer
  • Yes, you can use the CTEK US 3300 12-Volt Battery Charger, item # CTEK56158, to charge a battery while using the lights in the trailer. One thing to keep in mind is that the smaller battery charger will not be able to keep up with the lighting use in the trailer and the battery will eventually be drained, if not allowed to charge when the lights are not being used. It will not harm the charger. A better option is a charger that has a supply mode. The CTEK MULTI US 7002 12-Volt Universal...
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  • CTEK Battery Charger Does Not Stay in Desulfation Stage for More than a Few Seconds
  • There is no set time for each charging phase for CTEK battery charger # CTEK56353. If the battery is at or above the terminal voltage preset level then it will go on to stage 2. This would mean that the battery does not necessarily have sufficient lead sulfate crystals that need to be converted back to sulfuric acid. Also, on batteries that are completely dead or have excessive sulfation, the charger will not be able to resurrect it. Check to make sure that the connection points on the...
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  • CTEK Max Amperage with Smartpass and Solar Panels for Best Charging of Multiple Batteries
  • The CTEK D250S Dual Battery Charger 12V- 20a, 5 step, Heavy Duty # CTEK40186 has a maximum output of 20 amps. When used with the CTEK SmartPass Energy Management Unit for CTEK D250S DUAL Battery Charger # CTEK56676, my contact at CTEK said it has a max amperage output of 120 amps not the 80 they have previously stated in the past. This combination will allow 14.4 volts and 120 amps to pass to your batteries whether using solar or alternator. He also stated that you can switch the...
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  • Connecting Solar Panel Lead Wires To Two-6 Volt Batteries Connected In Series
  • For this application you will want to use the CTEK D250S Dual Battery Charger 12V- 20a, 5 step, Heavy Duty # CTEK40186. This will give you a clear input for your solar panel and alternator and a clear positive output to your two 6V batteries run in series and to negative. I've attached a diagram as requested.
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  • Recommended Battery Charger For 6V Batteries
  • Most of the battery chargers we offer are for 12V batteries and have a range from 4 to 8 step charging process. From my research I see the Trojan T-105 battery is a 6V battery. We offer one charger for 6V batteries. The 6V battery charger we offer is the CTEK UC 800 6-Volt Battery Charger, part # CTEK56191. This is a 4-step charger that automatically switches to pulse-maintenance phase when full charge has been reached.
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