How do the MH Diesel Engine Batteries receive their charge?

[Discovery8]

I have two 12v engine batteries on my diesel MH. I understand the engine batteries receive a charge when driving, but I have a few questions.

1. Are the two 12v engine MH batteries receiving a charge when I am plugged into shore power?


2. Are the two 12v engine MH batteries receiving a charge when I run the generator?


3. Can the two 12v engine MH batteries receive an overcharge? If yes, what would cause this (a bad board, etc.)?

I appreciate any help/advise you may have. Thanks.

❚ Did you miss the FTS "Announcement : READ BEFORE POSTING HERE"?

Forum Technical Support (FTS) is reserved for questions related to the use of the Open Roads Forum sites,
member profile and photo testing, and for reporting account issues. Please avoid using FTS for RV related
questions. Instead, select the Sub-Forum which corresponds to the subject of your topic.

Thank-you!


Moved from FORUM TECHNICAL SUPPORT

[big_jim_2]

#1 yes #2 yes #3 no

[Mandalay_Parr]

My chassis batteries are charged by my engine, shore and generator.
I have a BIRD circuit board controlling.
Yours may be different. You can double check using a volt meter.