How Do Trailer Batteries Normally Get Charged When Being Towed

Question

Question:

RE: Trailer Breakaway Kit Battery Charger - Code: 20011 I need a simple way to keep my old RV, 12v deep cycle SLA battery charged while protecting it from over/under charging while on the road. Will this charger handle this application? Thanks...

asked by: Ed

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Expert Reply:

What most people do to put a maintenance charge on a deep cell battery like yours that is on a trailer is to run a 10 gauge wire from the 12 volt accessory circuit on the 7-way directly to the positive post of the battery. A battery of your size can only have a maintenance charge put on it through the trailer connector though since the wire gauge is pretty small. The silver lining to this is that you would never have to worry about the battery getting over-charged.

expert reply by: Jameson C

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Answer 1

Generally you do not want to leave a DC to DC charger exposed to the elements. While a charger like the OptiMate Smart Battery Charger #MA99JR does have a durable weatherproof case they restrict use to inside only. We do have the Breakaway Style…

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Answer 2

Yes, you can use the Hopkins Trailer Breakaway Kit Battery Charger, #20011, with the motorcycle battery on your motorcycle trailer. Like you said, you would simply tie-off the blue wire since it will not be used. This charger will maintain the charge…

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Answer 3

There is not a breakaway kit battery charger, including the Hopkins #20011 that will eliminate vampire draw completely. I do strongly recommend taking a look at the help article I added on trailer breakaway kit installation. Going by this should help…

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Answer 4

You can definitely ground your trailer brake assemblies to your trailer frame. This will be just as effective and also will be a much easier install.

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Answer 5

Yes, you can use the Trailer Breakaway Kit Battery Charger #20011 from the main trailer battery. You will not want to attach the red wire to the switch battery positive and blue to the negative. To install, what you need to do is connect the black…

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Answer 6

You will need to do some measuring to determine if the 10 Inch Electric Brake Assembly LH, item #AKEBRK-35L, is the correct assembly for your trailer. Measure the diameter of the mounted brake shoe, the width of the lining and the distance between…

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Answer 7

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 8

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 9

The first thing you'll need to flat tow your 2015 Chevy Malibu LS is a base plate kit like the Roadmaster part #RM-523178-5 that is a confirmed fit. In addition to the base plates, you will also need a compatible tow bar, safety cables, lighting,…

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Answer 10

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 11

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 12

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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How Do Trailer Batteries Normally Get Charged When Being Towed

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