need a positive circuit solar controller
or use a DROK voltage buck booster as an intermediate step what i need is a charge controller that controls the V+ output the majority of controllers use common connection for all the Plus connect...
Forum Discussion
In the Outback FM60 and FM80 the controlling is done in the positive lead. The PV- and battery - are tied together in the controller. It only needs a negative connection to the battery -. You can just connect PV+, Batt +, and negative.
