Rv Batteries Parallel Or Series

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.

Rv batteries parallel or series.

If four 6 volt batteries each with a capacity of 200 amp hours are wired in series parallel the result is a 12 volt battery bank with a capacity of 400 amp. When connecting two 12 volt batteries in parallel the voltage stays the same but the battery bank will provide electricity longer while maintaining a usable voltage. Two 100 amp hour 6 v batteries in series have the sam capacity as one 100 ah 12 volt battery. Connecting in series parallel requires wiring two batteries in series and wiring each pair of batteries in parallel.

Batteries wired in this way will increase their voltage and amperage. 6v rv batteries need to be wired in series in pairs to create a 12v battery. 12v rv batteries should always be wired in parallel because you want to keep the voltage the same but increase the amp hours. Two 12 volt batteries in parallel have twice the capacity of the six volt series but the 12 volt parallel connection is a dangerous fire and explosion hazard.

Jeffery gannon october 13th 2017. The parallel setup will keep the power output the same as the batteries but it will increase your capacity for every battery added to it. I recommend connecting 4 12v batteries in parallel so that you have a normal amount of power for an extended period of time. I am a retired ee.

The critical difference is that series batteries add voltages together at a common current while parallel batteries add currents together at a common voltage. We have a photo see photo at right that shows how to wire the batteries in parallel.