Class A Motorhome Wont Start!

Ivylog wrote:
You need to buy a 2 amp trickle charger and put it on the engine battery which is not getting charged while hooked to shore power. Drawing the battery down in 24 yours suggests you have a light on (maybe in the basement) that's killing your battery although a new batter is often not fully charged by the time it's sold.

Engine start batteries are not deep cycle nor 6V.

You can also put a trikl-start in. It will keep the engine battery charged when plugged in. Also if you replaced the battery with a golf cart battery it is not compatible. You need a 12 volt battery. Most diesel pusherss have 2 12 volt batteries for the chassis so I dont know why you replaced only one?? Maybe you changed the wrong battery. Should have 6 caps on it.