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
Quote:
When I mentioned a charge of 12.7 volts, that was the reading after the generator had been turned off for a few minutes
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That = batteries that are a long way from full charged.
A good battery will still read 12.9 - 13+ v the next morning yet. But that would be under zero load. In 24 hrs, it could be down to 12.7 I suppose.
Some batteries will last 8 - 10 yrs, namely those that are kept fully charged.
The way you have treated yours, will be the ones that last 1 - 3 yrs.
In your case, there was not much worse than adding 2 more batteries, because instead of having 2 dead batteries, you now have 4 dead batteries.:(
When I mentioned a charge of 12.7 volts, that was the reading after the generator had been turned off for a few minutes
---------------------------------------------------------
That = batteries that are a long way from full charged.
A good battery will still read 12.9 - 13+ v the next morning yet. But that would be under zero load. In 24 hrs, it could be down to 12.7 I suppose.
Some batteries will last 8 - 10 yrs, namely those that are kept fully charged.
The way you have treated yours, will be the ones that last 1 - 3 yrs.
In your case, there was not much worse than adding 2 more batteries, because instead of having 2 dead batteries, you now have 4 dead batteries.:(
