What’s better in 12v batteries?
3 34 amp hour batteries or 1 100 amp hour Battery?
Forum Discussion
Guys with VW vanagons, that have a space under the front seat for an additional battery, were using multiple AGMs in parallel, to stuff more amp hours in the space available than the biggest car jar single battery which would fit.
Seems most had issues with poor battery life/performance with that set up and nobody seems to go that route anymore
Its not like the chinese 35AH AGM batteries one receives are all manufactured on the same date, same line and plant and have the same internal resistance. The stronger will feed the weaker when in parallel, and the stronger are not as happy as they could be if they were separated and fully charged.
Given the preponderance of people who think hammer crimps, vice grip crimps or thin HF quality ring terminals, or those who simply crush stranded wiring under a washer, I'd be quite wary of additional unneeded connections.
If multiple in parallel is decided upon, take the + and - for all loads and charging sources from batteries 1 and 3, not all on battery one or battery 3 even though this might appear to be easier or cleaner to wire up in certain rigs.
Seems most had issues with poor battery life/performance with that set up and nobody seems to go that route anymore
Its not like the chinese 35AH AGM batteries one receives are all manufactured on the same date, same line and plant and have the same internal resistance. The stronger will feed the weaker when in parallel, and the stronger are not as happy as they could be if they were separated and fully charged.
Given the preponderance of people who think hammer crimps, vice grip crimps or thin HF quality ring terminals, or those who simply crush stranded wiring under a washer, I'd be quite wary of additional unneeded connections.
If multiple in parallel is decided upon, take the + and - for all loads and charging sources from batteries 1 and 3, not all on battery one or battery 3 even though this might appear to be easier or cleaner to wire up in certain rigs.
