Seabass69 wrote:

If I don't keep my mh plugged into shore power, the battery goes dead.
It appears you are writing about the chassis battery?
Yes it's the chassis battery...


I charged it then turned off the battery switch inside and unplugged the shore power, next day it won't crank.

Does your chassis battery receive a charge from shore power? Many rigs do not have that feature.
YEs it appears by the volt meter that it's charged by the maintainer as well as the house batteries...

The inside battery shut off switch is normally for the house battery.

Do you also shut off the chassis battery?

No I didn't shut the master disconnect off, just the inside switch.

How do you determine that the chassis battery is charged when you remove the shore power? Do you have a meter inside or a multimeter that you use?

I used a meter and plus it cranks .l.


Any ideas where to start looking for a electrical draw? When I hit the battery boost to crank it, that doesn't work either.

Try disconnecting the negative cable from the chassis battery overnight. The next day rehook and see if you have power in the battery to start the engine.

I will try this tonite if I can... Thanks

If it starts the battery is good and you have a draw on the chassis battery. If the engine will not start, the battery is bad.