6 Volt Batteries and Solar Charging
I have one of these NOCO 5 Watt Solar Battery maintainers. Assuming I have two 6 volt batteries in series to product 12 volts, am I correct that I would still use a 6 volt controller despite the fact ...
Forum Discussion
2 6 volt batteries in series become 1 12 volt battery and should be treated as such. I wouldn't bother with a charge controller on a 5 watt panel. That panel is likely only good for about .3 amps Imp at most. That's not enough to overcharge those batteries. The general rule of thumb is that you don't need a charge controller for charge current 1 percent or less of the battery AH capacity. 2 6v golf cart batteries would be around 220 Ah. 1 percent of that is 2.2 amps or 7 times the capacity of your panel.
