>> Of course all of this could be avoided by buying a >> solar panel specifically designed to charge 12V batteries. > >Not for charging the battery overnight :) No but he will need it to recharge the motor home battery during the day if there is no other method of keeping it topped up while the gel cell is charging. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads