How to Wire Dual Batteries in a RV
- 1). Use a wrench to connect the battery jumper wire from the positive terminal of one battery to the positive terminal of the other battery.
- 2). Connect the other battery jumper wire from the negative terminal of one battery to the negative terminal of the other battery.
- 3). Connect the positive lead from the RV to the positive terminal of either battery.
- 4). Connect the negative lead from the RV to the negative terminal of the same battery you connected to in Step 3. It does not matter to which battery you choose to connect the leads from your RV, as long as you connect to the positive and negative terminals of the same battery.
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