A Gentle Introduction to RV Batteries – and How to Replace Them

Welcome to your complete FAQ guide to RV and camper lead-acid batteries. This free mini Ebook contains the answers to many (hopefully all!) common RV owner questions about camper batteries: how they work, how to charge, why they break, etc.

What Is an RV Battery?

Dual Battery Bank on Tongue

At the risk of insulting your intelligence, a battery is a device that stores electrical energy. A basic battery is made up of an anode, a cathode, and an electrolyte. Batteries can be smaller than the width of a human hair or as large as a football field.

All RVs and campers have batteries onboard! These batteries provide 12-volt (12V) direct-current (DC) power for your 12V electronics, such as ceiling lights and roof fans. They are usually 40-60 lbs and the size of a lunchbox.

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