Solar panel for keeping house battery charged?
We have 4 pit blinds with bilge pumps installed to keep the rain water pumped out. We have deep cycle batteries in the blinds to run the pumps. There is no electricity nearby for trickle chargers and the batteries are too cumbersome to take in and out throughout the season to keep charged at camp.
Do the solar panels advertised keep a charge on a battery or is it a gimmick? Does anyone use one with success?