inputs.text: 10a mmpt - faked unit price irresistible bought one 85w panel 4x amps panel unit lights connected 12v battery connected 85w panel 21v green lights show charging battery days later brand new battery died upon checking readout regulators terminals battery load 18v not cap volts 13v claimed charge battery 18v damaged expensive deepcycled battery realized point also measured mppt effect voltage constant 18v instead tracking sun vary voltage throughout day bad faked unit worst yet since damaged battery