I'm planning to install two 130-watt Kyocera panels
to help charge my house bank of four AGM batteries
The controller recommended by the retailer is a MPPT
250 by BZ Products. Anyone have experience with this controller?
Also, I read on another forum that MPPT
controllers should only be used with large solar
array systems because the controller takes more energy to run than the additional output they provide. Can that be right? Would I be better off with a non-MPPT controller?