Dead Batterys

[samsberr]

Went out to take the MH down to fill the propane... It's been plugged in for about two weeks...brought in the slide and Jack's... Went to start it... Was completely dead... Hooked up a battery charger and all the clearence lights and parking lights came on and stayed on...
The switches are all off...
Needless to say the battery won't charge with all the lights on so I unhooked the battery and charging it now... My question is why are the lights staying on in the first place...
Coach batteries dead to...



2019 Thor 24h
Ford E350
15k miles



Thanks in advance

[Bob Denman]

How did you have the Use/Store switch set?

[samsberr]

It was on.... While it was plugged in... But off now...

[16ACE27]

Originally Posted by samsberr

It was on.... While it was plugged in... But off now...

I assume you were able to bring the slides in and raise the jacks because you were plugged into SP.

The fact that your coach batteries are dead belies your understanding of the status of the battery disconnect - it was obviously OPEN (OFF/Disconnected) or your house batteries would be fully charged. Many people are mistaken in the belief that the "status" light gives the status of the battery disconnect switch: it does not unless the generator is not running AND you are not connected to SP. The light simply tells you there is 12 VDC present on the house 12 volt power buss, which is always the case if you are plugged into SP regardless of the status of the battery disconnect.


As far as the running lights being on:

They do not draw enough current to stop your chassis battery from charging unless you are trying to charge them with a small battery maintainer/charger.
Why they are on when switched off is a mystery. Sounds like you may have found the reason your chassis battery is dead though.

[samsberr]

Thanks ya'all... I got it started.... Took it for a good drive and it seemed to hold a charge and the lights do shut off...now I'll see about the coach batteries...