How to Charge a Trailer Battery

Question

Question:

Will this battery charger also charge a 12v Vehicle battery mounted in my trailer box for running accessories. along with my trailer brake battery. thanks

asked by: Brian B

0

Expert Reply:

The Tekonsha Push to Test Breakaway Kit # 50-85-313 that you referenced is designed to charge a breakaway battery. It would not charge your trailer battery that you use for accessories.

To put a maintenance charge on your trailer battery that runs accessories you would need to run a wire from the 12 volt accessory circuit of your trailer connector to the positive post of the trailer battery. This won't charge a dead battery though, it will just help keep a charged battery topped off.

To charge a dead trailer battery you would need a charger like the CTEK 3300 Battery Charger part # CTEK56353 that plugs into a wall outlet.

I attached a review video plus an FAQ on breakaway systems.

expert reply by: Jameson C

0

Answer 1

The three wires of the Tekonsha Breakaway System part #50-85-313 will get wired as follows: The white wire attaches to the ground wire. The blue wire attaches to the brake output circuit that goes to the brake assemblies of the trailer. The black…

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Answer 2

Most of the breakaway kits that we offer do include the battery. It is also a good idea to get a kit that has a built in battery charger. I recommend the Tekonsha Breakaway Kit #50-85-313. This kit will include an integrated battery charger along…

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Answer 3

The breakaway cable should be longer than the safety chains according to RVIA Recreational Vehicle Industry Association. This will activate the brakes in the event you lose the trailer connection and the safety chains fail which will bring the…

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Answer 4

There is a possibility of back feeding but this should not really be of a concern as the odds of it happening are slim to none. If you did choose to use a diode then you would need one rated for the components it would be powering. The highest rated…

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Answer 5

The best length for the cable of a breakaway system like the Tow Ready Trailer Break Away Kit #50-85-313 that you referenced will be just a bit longer than the safety chains. The breakaway cable should be longer than the safety chains according to…

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Answer 6

The Breakaway Kit with Premium Integrated Charger #50-85-313 should not overcharge the battery in the system. It will go into a maintenance mode to maintain the optimum charge after the battery is fully charged. A battery being charged will get hot…

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Answer 7

The wiring for the Tekonsha breakaway kit #50-85-313 and trailer wiring junction box #38656 is listed below. You can also view the picture to the right. The breakaway kit will have 3 wires to hook up where as the breakaway switch will have 2 wires.…

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Answer 8

To charge the battery in the Engager Trailer BreakAway Kit, #20099, you can attach the wire from the 12 volt circuit on the trailer side 7-Way (1 oclock position on the back of the trailer side 7-Way where the wires attach) to the input wire on the…

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Answer 9

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 10

While the spacers included in the Kit #T68MR will work with your Timbren Springs #TGMRYS4 they do not use the same mounting bolts. Your GMC Yukon uses 3/8" hardware while the spacer kit includes M10 hardware so you would still need to source the…

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