There are 3 main types of batteries, Flooded, AGM and Lithium in order of price. If you decide to go with AGM or Lithium you have the ability to bypass the venting system, some mount them in living quarters for smaller temperature swings. When measuring the battery box don’t forget to leave yourself enough height for connecting the battery terminals. Flooded lead batteries will require adding water, checking the specific gravity and the venting system will have to remain functional. It will be easier, but not always required to have your new batteries fit in same boxes. This can be critical, your RV came with battery compartment or box and a venting system. Of course we can’t forget about starting the generator either, if you have one onboard. The devices that require 12v power include Propane fridge controller, furnace thermostat and blower, lights, water pump, radio, move the slides, tounge jack, some leveling systems, many awnings and various others devices. While boondocking our battery has many important tasks to do for us, some will be surprised how much we rely on them. Each battery will have a capacity around 100AH. Try to find a battery with same physical size making sure to choose one with an AH rating on it. If your RV is plugged in most of the time.įor people that keep their RV plugged in at RV park or home all most all of the time only replace battery when non functional. This article will help you find the best functioning battery for your RV, the way you use it. Most of these people went to an RV Dealer where they have a rack of batteries and you get to pick a pretty one. Your battery must state the AH (Amp Hour) capacity on the label or it is not a deep cycle battery.

I decided to write this article because 75% of the people I help have the wrong battery for them installed in their RV. Golf Carts batteries are typically made better and have thicker lead plates.

Used deep cycle batteries