As long as these are the same TYPE of battery (agm/gel/sla), hooking them up in parallel should make them operate as one large battery. They aren’t connected by the chemistry, they are connected by the electrons that the chemistry creates. As long as you dont start mixing the different types of batteries that work on slightly different voltages, parallel away! It is only going to be when you splurge for the lithium house batteries that you’re going to have to delete everything and start over. (Note – gel batteries require slower charging, so don’t use them unless you know your house converter is setup for it)
SnakeShaker
Posts: 36