Paranoid Battery Question

[Kenny Loney]

Depending on how your MH is wired, the chassis battery(ies) may or may not be wired to charge when plugged into shore power. Ours were not, and after a few weeks, the chassis battery was dead.
I added a trick l charger to the chassis battery and plugged it in to the coach 120v system, so now the chassis battery is charged when plugged in.
Parasitic draws on chassis battery, ECM engine control module, radio memory or radio use, depending on how the RV manufacturer wired it, in our case door remote to unlock coach door ( turned on cab courtesy lights as well as the Lock/unlock function, steps in out also on chassis battery.

Ken

[Ray,IN]

Originally Posted by lwmcguire

When I store mine I always open the battery disconnect so it will have voltage

However I don't leave the coach plugged in since changing to AGM house batteries

After you get going you need to see if the chassis batteries are actually seeing the charger current

Your BIM or whatever you have might have failed if you don't have a bad battery

Open means not connected, is that what you intended to say?