Re: Solar panels in series or parallel?

Actually, in parallel you add the amps, and in series you add the volts.

The big factor there is the Voc limit of the solar controller which will fry if you go over the Voc limit at all, no second chances.

Unless there is much shading in your situation, there is no advantage in amps to the battery either way. If there is some shading, parallel is better for daily AH haul.