Originally Posted by AKnight
Well looks like the book and the inverter aren't the same. Doesn't look like the xm1800 is a charger.
Guess that means that something is just killing the batteries.
XM1800? Your picture shows an XM1000 which certainly does not charge batteries, it's solely an inverter.
So you have a converter in your Power Panel.
Yeah, DC loads are killing your batteries - you still need to figure out why your converter is not charging the batteries.
Did you located the 50 Amp DC breaker?
Check your reverse polarity fuses on the DC fuse panel.
Do you know how to use a multimeter?
Is your USE/STORE latching relay really closed?