Hello, this has probably been answered somewhere, but I can’t find it. My question: I bought a car with which the starter battery is paired with a power supply battery, i.e. they are apparently also charged together by the alternator. If I now have a charger attached to one of the two as normal as with every car, are both charged simultaneously and evenly? I can also decouple the batteries with a separate switch and charge each one individually, would that be better, or worse? Maybe to the connection: the start battery is normally connected as standard. The power supply battery on the plus side of the start battery is connected with a “comic” part also with a plus of the power supply battery. On the minus side, the power supply battery is simply on the bulk at a screw from the driver’s seat. I am not a battery master and also no electrician, I’m simply concerned about whether I’m better overall, so coupled charge, or rather individually.