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Best Solar Charge Controller?
I''m looking for a solar controller that will handle about 20-25 amps (2 120w panels and maybe another smaller one later).
Seems there are all kinds of solar charge controller ''technology'' out there... Constant Current, Variable Profile, ''Pulse Width Modulation'' (PWM), Load diverting, ''European Digital Charging Technology'' (EDCT), etc..
Which controller type offers the most efficiency while being the easiest on the batteries (i.e. to maximize battery life)?