Hi i have a dcdc 12/12/30 and a 100/20 solar controller, the solar controller works fine without the car running, when the car is started the DCDC kicks in but at a reduces amp input, for example solar input 10amps dcdc running total showing 20amps so the dcdc only adds an extra 10amps, i also have a BMV712 connected, maybe the setting on all three are conflicting?