Expert Answers about Battery Chargers

• Can Two 12 Volt Batteries Connected in Parallel be Charged Through a Switch Using a CTEK Charger
• You can charge 2 batteries when they are connected in parallel using a CTEK battery charger such as # CTEK56158. However, it will take longer to charge the batteries when they are connected compared to if you were to charge each one separately. The best battery charger to use for charging batteries in parallel would be # CTEK56353. It has a higher amperage output and will charge faster. I have included a link to our FAQ article on battery chargers for you.
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• Recommended Trickle Charger for Automotive Battery
• Although the Powerhouse Charger you referenced, part # PH19216 is a 2 amp trickle charger that is meant to keep a battery maintained over long periods of time, it is not really designed for use with large automotive batteries. It is better suited to smaller batteries like those found in lawn equipment or motorcycles. I would instead recommend the CTEK 12-Volt Universal Battery Charger, part # CTEK56158. The charger will automatically change from charging to maintenance mode once the battery i
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• Installing CTEK Battery Health Indicator # CTEK56380 in Outside Wall of Horse Trailer
• The CTEK Battery-Health Indicator you referenced features a rubber plug to exclude moisture and dirt from the connector where the charger would plug in, but I wanted to call CTEK to ensure that the item would hold up when installed in an area where it would be exposed to the weather. According to the fine folks at CTEK, installing the Indicator to the outside of the trailer would be perfectly acceptable and should work just fine for you.
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• Differences Between CTEK Battery Chargers # CTEK56864 and # CTEK56158
• Both products are smart chargers, meaning that they adjust their charging current and voltage continuously depending on the condition of the battery being charged, rather than pump the same current continuously. Both automatically switch to pulse maintenance mode once a full charge is reached. I have included a manufacturer video that might be of interest and also one demonstrating one type of installation in a vehicle of part # CTEK56158. The CTEK Multi Universal Charger, part # CTEK5686
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• Does the Ctek Battery Charger Restart if it is Unplugged
• If you lose power to the CTEK MULTI US 3300 12-Volt Universal Battery Charger # CTEK56158 that you referenced it will start over in the default car setting. I can speak from experience because I own a Ctek battery charger and have unplugged it and then after replugging it back in found that everything on the controller restarts and goes back to default. So if your charger loses power you will need to reset it to the correct setting if not using the default setting. I attached an FAQ articl
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• Will CTEK Battery Health Indicator Work When Not Plugged into Charger
• I believe you are asking if the battery health indicator needs to be plugged into the charger in order for it to work, is that correct? The CTEK Battery-Health Indicator does not need to be plugged into a CTEK battery charger in order for it to work. As you can see in the video I have linked you to, you can leave the indicator in place permanently so you can check on the charge level of your battery at any time. To charge the battery, simply plug your CTEK charger into any 110v outlet, re
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• Battery Charger Option for a 2002 Corvette C5 Red Top Optima Battery and Deep Cycle Trailer Battery
• After doing some research on the red top Optima Batteries for your 2002 C5 Corvette, the CTEK 0.8 Universal Battery Charger for Small 12 Volt Batteries # CTEK56865 will maintain a charge on your vehicle battery. This charger should also be able to maintain the charge on your deep cycle trailer battery as long as it has a capacity less than 100 amp hours. This charger can maintain batteries with capacities up to 100 amp hours, but will only charge batteries with capacities from 1.2 to 32 amp hour
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• Charging Two 6 Volt Batteries and One 12 Volt Battery with a CTEK Battery Charger
• If your 6 volt batteries are connected to the single 12 volt battery the same way that they are attached to each other then you essentially have a 24 volt system. You would need to separate the two 12 volt systems and then charge them independently of each other (one at a time). Charging each battery one at a time will actually take the least amount of time. If your charger can do both 6 volt and 12 volt batteries make sure you have it set to the proper mode. If your system ultimately puts ou
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• How to Charge Multiple Batteries and Prioritize Charging and Power Output
• The first thing you are going to want to do is determine what is drawing power from the battery and repair it. Otherwise a charger will not be able to charge the battery properly. You can use the CTEK D250S DUAL Universal 12-Volt Battery Charger, # CTEKD250S, but to prioritize charging and power output to different sources you will need to add the SmartPass, # CTEK56676. I have included a link to the instructions that show how to wire everything up. I have also included a link to our FAQ article
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• Will CTEK Battery-Health Indicator Cable, # CTEK56380 Work with Dual Batteries
• There are 2 ways that batteries can be connection: in parallel or in series. If the batteries are in parallel they will have 12 volts output. If they are in series then they put out the combined voltage (two 12 volt batteries would put out 24 volts). Provided that the batteries are connected in parallel and have an output of 12 volts then you can use the CTEK Battery-Health Indicator Cable, # CTEK56380. If the batteries are in a series then you would need one for each battery. When charging t
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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 batter
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• Can Battery be Charged through Cigarette Lighter with a CTEK Battery Charger on 1999 Porsche Boxster
• Sweet car. For extended time it is best to connect the CTEK battery charger, # CTEK56158, directly to the battery. Otherwise you will be running the charger cables out of the vehicle and will have to close the door on the wiring. The wiring on the 12 volt port is also fairly thin so it is not the ideal set up for charging a battery. I recommend attaching the ring terminal connections to the battery and leaving that end tucked away with the battery. Then when you want to charge the battery you
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• Is a Back Up Battery for a Boat Sump Pump Needed in Addition to the Trailer Battery
• If you will be leaving the boat in the water then having a battery back up would be recommended. Or, at the very least, store a spare battery that is not connected to anything in case it is needed. If the boat will not be stored in the water then leaving the pump connected to the regular trailer battery will be fine. Using a charger like # CTEK56158 is the best way to charge and maintain a 12 volt battery. I own one of these chargers and it works great; much better than a trickle charger sinc
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• Powering Fans in a Horse Trailer Without Leaving Trailer Connected to the Truck
• To power the fans on your horse trailer when the trailer is disconnected from your truck, you will need to add a battery to the trailer. I recommend using a battery box and mounting the battery on the frame of the trailer so you can easily ground the battery to the frame. Once you have the battery installed, you will want to run the wire for the 12 volt circuit on the trailer side connector to the positive battery terminal. Next, connect the power wires from the fans to the battery. I recomm
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• Will The CTEK MUS 4.3 Battery Charger Charge a Deep Cycle Battery
• Yes, the CTEK MUS 4.3 12-Volt Battery Charger, # CTEK56864, will charge deep cycle batteries. You may also be interested in the CTEK MULTI US 3300 Battery Charger, # CTEK56158. This charger will also charge deep cycle batteries, but does not come with the switch for small or larger batteries. I have attached a video of this charger for you to check out.
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• Recommended 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 battery,
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• Can the CETEK Battery Charger # CTEK56158 Be Used While RV Battery is Connected
• The CTEK Multi US 3300 can indeed be used while your RV battery is connected. Since the converter will not come into play unless the RV is plugged into shore power, the converter will not be damaged. To see the owners manual and instructions, click the provided link.
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• Will Indicator Light on CTEK Panel Box # CTEK56380 Always Be Lit
• I contacted our representative at CTEK about the Indicator Cable w/ Panel Box # CTEK56380. He informed me that the indicator light will always be lit. The Panel Box can be used with all CTEK Comfort Connect 12V chargers.
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• Can the CTEK US 3300 Battery Charger be Used to Charge a Car Battery
• The charger you would want to use for car batteries is the CTEK MULTI US 3300, # CTEK56158, that you have referenced. It is designed specifically for 12 volt car batteries. I have included a link to some video reviews for you.
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• Will CTEK Battery Charger Charge Battery Without Damaging It?
• If the car battery is merely discharged but otherwise in good repair, using a CTEK charger will not damage it. CTEK chargers will not over charge a battery, once full charge is reached, the charger switches to pulse maintenance, which maintains the charge rather than applying full power to the battery. A charger like the CTEK Multi US 3300, part # CTEK56158 would be best suited for a car battery. The charger is suitable for deep-cycle batteries. This charger features three modes, one for smal
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• What is Voltage Range For Each Light Color on the CTEK Battery Health Indicator Cable # CTEK56382
• On the CTEK Battery-Health Indicator Cable, part # CTEK56382, the three lights will give you a quick and easy evaluation of the battery charge level. Green is a fully charged battery. Yellow is a partially charged battery. Red is for a discharged battery. I spoke with my contact at CTEK and he said the voltage range for the light colors are as follows, Green is above 12.7 volts Yellow is between 12.4 and 12.7 volts Red is below 12.4 volts He also said the voltage ranges are not affect
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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 on t
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• Wiring a Battery, Power Inverter, and Charger on a 1980 Coleman Tent Trailer
• First, the wiring from a trailer connector will provide a maintenance charge to a trailer battery, but will not up-charge it. If that is sufficient for your needs then you would have the trailer connector, trailer side, 12 volt circuit attached to your charger. The charger would then connect to the battery, and the inverter would connect to the battery. Bascially, you will have the 12 volt power wire go to the positive of the charger. Ground the charger to the trailer frame. The positive of t
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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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• 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 in line
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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 Single-Po
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• Will the CTEK DC Battery Charger Help to Bring an Auxiliary Optima Yellow Top Battery to Full Charge
• You are correct, that an alternator is not designed to fully charge a depleted battery. In your case the Optima yellow top is being significantly discharged and will eventually need to be charged with a good battery charger like the CTEK MULTI US 7002, # CTEK56353, or the CTEK MULTI US 3300, # CTEK56158. The CTEK Battery Charger, item # CTEKD250S, can be used to boost the charge that your alternator is sending to the second, yellow top, battery that you are using to power the fridge. This wil
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• Charging an Auxiliary Battery and Dual Trailer Batteries with the # CTEKD250S Dual 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 # CTEKD250S, 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 the vehi
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• Can the CTEK Battery Chargers Resurrect Nearly Dead Trailer Break Away Batteries
• The CTEK US 3300 12-Volt Battery Charger, # CTEK56158, may be able to resurrect your batteries but if they were dead long enough, they would probably be too far gone to bring back to working order. The best bet for this scenario would be the CTEK MULTI US 7002 12-Volt Universal Battery Charger, # CTEK56353, because it has a special reconditioning mode that restores the power capacity of stratified batteries. The 7002 also has an 8-step charging process.
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• Does The CTEK D250S Battery Charger # CTEKD250S Come With A Solar Input
• The CTEK D250S Battery Charger, part # CTEKD250S, does come with an auxiliary input for connecting to a solar panel without the need for a regulator. I am including a picture of the CTEK D250S battery charger to the right. You would connect your solar panel to the two top connectors. The connector on the top left is for solar panel in and the connector on the top right is for solar panel ground (-).
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• Battery Charger for Maintaining the Charge on a 2005 Ford Excursion Diesel with 2 Odyssey Batteries
• The CTEK Battery Charger, item # CTEKD250S, is designed to charge an auxilliary battery form the vehicle alternator output or from the starting battery on the vehicle. This charger would not work for your application unless you have a solar panel that can be ran to the positive input side of the # CTEKD250S charger. In that case the solar power can be used to help maintain the vehicle batteries and keep them from overcharging while you are away from the cabin for extended periods. If you are
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• CTEK Battery Charger # CTEK56353 Recommendation for Charging a 6 Volt Battery
• In order to charge a 6-volt power system you will want to use a CTEK UC 800 6-Volt Battery Charger w/ Pulse Maintenance, part # CTEK56191. I attached links below to a review video of this product and installation instructions for you to check out also. The reason you should not use a CTEK 7002 is because it designed for use on 12 volt battery systems, and would not be compatible with your 6 volt system.
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• What is the Warranty On the CTEK Multi US 3300 12-Volt Universal Battery Charger, # CTEK56158
• The warranty statement can be found in the instructions for the CTEK Multi US 3300 12-Volt universal Battery Charger, # CTEK56158. It has a limited 2 year warranty from the date of purchase. The complete statement can be found on pages 12 and 13 of the instructions. A colleague uses this charger and has been very impressed with its performance and has stated this often. As a result, he has had to loan it out to other co-workers, all of which have had success with the charger. I have included
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• Does the Battery Charger in My Truck Camper Shut Down When Fully Charged and What to Do if Not
• I will be glad to try to help. I am guessing here, but I believe what you are saying is that your truck camper has a battery charger that functions when you are connected to shore, household, power. If this is the case, you should contact the camper manufacturer to find out if the charger has a system for checking the battery charge level and shutting down when the battery is fully charged. I imagine the charger in the trailer is set up this way. If the manufacturer cannot provide this informati
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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 the bes
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• What is the Battery Charge Level at Green, Yellow, or Red Lights on the CTEK Indicator # CTEK56384
• I can certainly help you out. On the CTEK Comfort Indicator, # CTEK56384, a green light means that the battery does not need to be charged because it has an 80 percent or greater charge. The yellow light means the battery should be charged as the charge is between 60 and 79 percent. The red light means the battery will have to be charged to function properly as the charge has reached less than 60 percent. I have included a link to a video review of this indicator below.
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• Can 12 Volt Accessory Circuit on a 7-Way Trailer Connector be Used to Maintain a Deep Cycle Battery
• The 12 volt accessory circuit on a 7-Way can maintain a battery, it just will not be able to charge it. Since we are talking about maintaining a charge, a regulator will not be needed since the 12 volt accessory circuit does not have the capacity to charge the battery. So it will not overcharge any of the cells. Since a deep cycle battery is designed to discharge most of its charge at once, I would recommend connecting the 12 volt accessory circuit first to a 40 amp circuit breaker, # PK5454
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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 Batte
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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 charger k
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• Using CTEK Cigarette Plug Charging Cable, Part # CTEK56263 W/ Lighter Powered Only When Igntion On
• The CTEK Comfort Connect Cigarette Plug Charger Cable, part # CTEK56263 will not work to charge the vehicle battery unless the circuit feeding the cigarette lighter is live. Many vehicle have an additional power outlet that is powered when the ignition is switched off. If this is the case with your 2003 Toyota Tacoma, you can use the cable with that outlet. Leaving the key on would not be a good solution, as the power drain from having the ignition switch on would negate any charge receive
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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. This being said, you could also use the 12-volt accessory circuit on your 7-way trailer connector to maintain the battery on your trailer. Be sure to follow any battery manufacturer instructions regarding battery charging.
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• Can the CTEK MULTI US 3300 12-Volt Universal Battery Charger be Used on a 12 Volt 2 Battery System
• Yes you can use the CTEK MULTI US 3300 12-Volt Universal Battery Charger w/ Pulse Maintenance, item # CTEK56158, on your vehicle with two batteries. Just attach the cable with eyelets as you would to charge or jump your batteries. Connect the positive lead to the positive post on one battery and connect the negative lead to the second battery negative battery cable connection at the vehicle frame or engine block. This charger maintainer has smart technology that will not allow it to overcharge o
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