Digital electronic DC/AC charging controller with two control inputs for ThermoComfort duo-electronic VFDi.. (C), VFD.., FSD.. (C), VNDi.. (C), VTDi.. (C), VKD.. storage heaters, optional connection to DC charging control (0.91 1.43 V) or to AC charging control (alternating voltage 230 V, % ED), with jumper for adjusting the AC control system from 80 % ED to 72/68 % ED or to 37/40 % ED, jumper for selectable switch-off temperatures, plug position 520+ for increasing the target charge level by 5% compared to the specification of the central control unit, potentiometer 10 k included in delivery.