How To Hook Up 2 Batteries In Rv. Connect negative or ground cable to the negative terminal of one of the two 6 volt batteries that is NOT in the series connection Look at diagram again notice the battery terminals used. When connecting two batteries together on an RV trailer you usually connect the batteries in parallel to draw 12 volts from both of the batteries.
In parallel the voltage stays the same and in series it is doubled. Take a look at the diagrams here. RV Batteries are constructed to supply 12 volts or 6 volts for the purpose of this article.
For example joining two 6-volt RV batteries in series gives you a total of 12 volts but the amps remain unchanged.
Using two additional cables connect those terminals with the. Using two additional cables connect those terminals with the. For example when you link two 12volts batteries together you have twenty-four voltage to enjoy from but the current in them stays the same as well as the amp per hour level. The two types of batteries found in an RV.
