I never stop learning!
I learned this summer that the reason my new Alpenlite came with two deep cycle batteries instead of one (like our old Lance 1150) is because electric (Atwood/ with remote control) jacks will not oper...
Forum Discussion
My Atwood jacks have always worked off a single battery.
x2. On a 2002 Lance 915.
The current camper has Happijacs. Initially one battery installed; meanwhile upgraded to two for increased heating capacity.
There was never a problem running all 4 at the same time on either camper as long as the battery is not too low. Of course, when the heater has drawn the battery empty over the second night, not a single jack may move any more...
If you can only run 2 at a time, the battery voltage breaks down too much when you run 4. The system somehow does not support the amps that are drawn. Possible reasons, IMO:
- Battery capacity too small or battery in poor condition or battery too low
- Wire gauge between battery and jack controller too small,
- Poor +12 connection at the battery side, fuse block, or jack controller
- Poor ground connection (either at the battery side or at the controller side),
