Connecting Two 12V Batteries to Motorhome Coach

Question

Question:

how to connect two twelve volt batteries to the coach with existing house batteries. need the schematics

asked by: Janice M

0

Expert Reply:

The only schematics available is going to be the diagram I have attached which shows a pair of 12V batteries wired in series and wired in parallel. You are going to want to wire your batteries in parallel should your motorhome have a 12V system, which is likely. This will give you 12V power but double the capacity.

expert reply by: Kyle S

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Answer 1

Hey Vince, welcome back! Curt still has not put together a version of the #C45WR with a 2" ball. The only way to make this happen right now would be to order the Curt Ball Mount w/ Sway Control Tab #D320 and then add the Curt RockerBall Shock…

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Answer 2

Using Loctite when installing a trailer hitch is not required but it can certainly be used to create an even stronger bond. Blue Loctite like the Blue Stick #LT37643 is plenty sufficient for this application. As long as the hardware for your hitch is…

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Answer 3

It sounds like you're looking for the Curt Ball Mount w/ Sway Control Tab for 2" Hitches #D320. This is the same as the #C45WR but fits a 2" hitch and does not include a ball. If you're going to use your existing 2" ball make…

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Answer 4

You are correct, adding a second sway control bar, like the Curt Friction Style Sway Control, #17200, is recommended for trailers over 26 feet long. You will need to use the weld-on friction sway control tab #C45822 or #3442. It will get welded to…

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Answer 5

While a weight distribution hitch like the Fastway e2 #FA92-00-0450 will perform better to control trailer sway you could also use a Friction Sway #17200 with a Ball Mount #D320. If you go this route you have to remove the sway bar before maneuvering…

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Answer 6

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 7

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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Answer 8

If you just need a 4-pin to 7-pin trailer wiring adapter, then you can use part #C57672. This will plug into the 4-pin trailer connector on your brother's vehicle and give him the 7-pin socket for the trailer. Keep in mind, this will only give…

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Answer 9

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 10

Hey, Stephen! We got just what you need. Since you don't have a tow package, I'm not sure if you have a hitch on your 2025 Ford Ranger so I'll include one just in case. Draw-Tite Max-Frame Trailer Hitch Receiver Part #DT35PR Curt…

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Answer 11

It sounds like you may already have a 4 way connector on your vehicle, which is half of the battle. In order to operate the Curt Echo Mobile Wireless Brake Controller #C51180 you will need an almost fully functional 7 way connector; using something…

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Connecting Two 12V Batteries to Motorhome Coach

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