Overnight battery drain
I'm trying to determine if the overnight drain on my batteries seems reasonable. My 2008 Tiffen Class A coach came with 2 house batteries and an Onan generator. I want to dry camp at times, so I had 2...
Forum Discussion
To the OP, did you ADD 2- 6 volt batteries to the original or did you replace all 4 when you modified your battery setup? NEVER add or replace just 1 or more batteries in a coach battery bank---you always replace as a unit (2 or 4 or 6). NEVER mix old batteries with new. The problem is, the older batteries are not as "strong" as the new and if 1 or more is defective, IT will draw the complete bank down. 12.7 AFTER a complete full charge is too low. 12.9 to 13.1 will be the surface charge after a complete recharge. The fact that you had the 12.7 indicates 1 or more of your batteries is not 100%. Interstate Battery will replace all batteries in a bank if just one is defective under warranty. Doug
