Combining battery sizes in parallel.
Hi everyone. Old member that has been on a long hiatus. Our day has come and we are now retired so I am fortifying the camper with extra power in the form of solar panels and batteries. I removed t...
Forum Discussion
Well, if you didn't want to start a debate you shouldn't have posted, because this subject inevitably starts a debate.
Ideally, you should not mix battery sizes, at least on a long term basis.
Electrically it will work fine but over a period of time the differences between the batteries could cause problems. Weak batteries will kill good batteries for sure.
I've been using different battery banks in parallel for years. One bank in my truck and another in the trailer. When I'm drawing power for the camper they are connected. When I get home I disconnect from the trailer and park the camper in the barn, so they are never connected long-term.
Ideally, you should not mix battery sizes, at least on a long term basis.
Electrically it will work fine but over a period of time the differences between the batteries could cause problems. Weak batteries will kill good batteries for sure.
I've been using different battery banks in parallel for years. One bank in my truck and another in the trailer. When I'm drawing power for the camper they are connected. When I get home I disconnect from the trailer and park the camper in the barn, so they are never connected long-term.
