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Home / RV Battery / How to wire 6V Batteries in series or parallel configuration

How to wire 6V Batteries in series or parallel configuration

How do you create a multi-bank battery system for an RV, boat or other application? It’s rather simple but it requires you to know how to wire 6V batteries in series or parallel configuration.

There are several reasons why you may want to configure multiple batteries together; whether it be for cost savings, efficiency or increasing voltage or capacity. There are basically two ways to configure multiple battery systems, in Series or in Parallel. There is also a Series/Parallel combination as well. This article will help you to wire 6 volt batteries.

Wiring Batteries in a Series

In a Series Configuration the batteries are wired per the diagram below and the result would be a doubling of the voltage while the capacity remains the same. In our illustration we show two 6V batteries with 225AH wired together. The result would be a battery bank that produces 12V and 225AH.

Wiring Batteries in Parallel

In a Parallel Configuration the batteries are wired per the diagram below and the result would be a doubling of the capacity while the voltage remains the same. In our illustration we show two 6V batteries with 225AH wired together. The result would be a battery bank that produces 6V and 450AH.

Wiring Batteries in Series/Parallel Combination

In a Series/Parallel Combo Configuration the batteries are wired per the diagram below and the result would be a doubling of the voltage and doubling of the capacity. In our illustration we show four (4) 6V batteries with 225AH wired together. Each set is wired in series creating 2 banks, then the 2 banks are wired together in a parallel configuration. The result would be a battery bank that produces 12V and 450AH.