Forum Discussion
liborko
Feb 07, 2016Explorer
Of course they will charge and discharge differently because they have different Ah capacities. The 12V battery will reach full charge before 6V when charged and 12V battery will stop supplying current before 6V batteries will. That does not mean that they will not "play together". There is gazillion applications where batteries are paralleled without a problem. Paralleling 12V with 2x6V is not something that should be done by design but if you already have spare battery use it. There will not be any problems as long as none of the batteries is defective.
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