I believe that the lower charged battery will pull from the higher charged battery because it will try to get to an equilibrium as stated before I think that it's something about how if say one battery in a bank is drained because it has given more amps to the amp than the rest then the rest of the batteries will be pulled from until they are equal voltage
Sorry if that is confusing I just remember seeing that in a thread pretty recently but I forgot how they put it
I'm sure alpine can expand on it or tell me if I'm completely wrong. Lol
Voltage and amperage are different.... by your logic, you would need the same ah battery up front, as the back... there is countles people on here running a d3400 up front, and a d3100(s) in the rear... and they are different....(not to mentoin, you could buy 2 identical bats, and they wont rest close to each other, not that close anyway) when i said "amprage' i was talking about, haveing 2 batteries, and one "charging" the other, no amplifier involved... nothing involved.... the 2 batteries will find equal ground, and not sit and "pull and push" on each other all day,....., and if your talking a full volt(s), then, you have a nother problem.. thats all i meant, will i get another xs, you bet,... am i worried my car wont start tomorrow?..... come on......