How to connect RV batteries in series

Wiring batteries in an RV can be a confusing and potentially dangerous process. In this blog, we’ll be taking a look at how to connect RV batteries in series so you can get your vehicle up and running safely.

Connecting batteries in series: What does it mean?

Connecting RV batteries in series is the process of connecting two or more batteries to increase the overall voltage of the battery system without increasing its capacity.

For example, if two 6 volt 26Ah batteries were connected, the total battery voltage would equal 12 volts with a battery capacity of 26Ah.

How to connect RV batteries in series

For RV application, most batteries that need to be wired in a series will be 6 volts. Most RVs are built to handle a total of 12 volts.

Check the capacity rating and voltage

To connect RV batteries in series, the first thing you need to do is make sure they have the same capacity rating and voltage, otherwise, you could risk damaging them.

Connect the terminals

To connect RV batteries in series, you connect the positive terminal of one battery to the negative terminal of another battery and so on until all of the batteries are connected. Then, use a cable to connect the first battery’s negative terminal to the last battery’s positive terminal.

When you’re wiring RV batteries in a series, never connect the negative and positive cable to one single battery. Connecting the wires to separate batteries will help them last longer and ensure the setup is balanced.

Charge each battery individually

When you’re charging RV batteries in a series, it’s essential to use a charger that matches the voltage of the battery system. To avoid battery imbalance, charge each battery one by one.

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If you’re looking for high-quality LiFePO4 lithium iron phosphate batteries or Absorbent Glass Mat batteries from a responsible provider, Lifeline Batteries is here to help. We’re a family-owned and operated business that specializes in manufacturing batteries for RVs, racing cars, and marine craft. Shop our range today.