How long does an RV Battery Charge Last?

Assuming the the battery, wiring, and mechanics are in good condition, how long could I expect a charge to last on an RV battery?

For instance, if the RV had been run during the day, how long would a charge last using an average amount of electricity? (Maybe a TV and a few lights.) A day? Just looking for a ballpark idea. We're considering a "sit down" vacation in our Class A RV, and would probably just run the engine a little bit each day to keep the battery charged. Wondering how long it would last.

duh2008-12-24T21:43:09Z

Favorite Answer

If the battery is old and the load is above average (high), you might only get 2.5 hours.

However if you have a new oversize battery and the load is the new low load stuff, you might get 8 hours.

Look in the battery tray and see if you have room for an additional battery. that will double your battery time.

Class A's have a big battery tray.

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