Hello Specialists I am not quite clumsy in electrics, but the charging electronics makes me slow… To the facts: From the three-phase electric light engine (permanent excitation) come at idle 90 – 300V tip – tip (tested with oscilloscope) which corresponds to approx. 30V – 100V eff.. The connecting wires and the controller become warm (i.e. current flows). The controller (connected to a controllable direct current source brings from 14 Volt charging current into a partially charged battery, from 16V it closes briefly and the power supply goes on constant current with a residual voltage of 2 V (think this is the voltage drop at the diodes and thyristor). After disconnecting the voltage open the thyristors. This works at all 3 phases with both polarities. I also switched on an original used controller and a new compatible. The same problem. Cable connections were measured (goods ok) and bridged for safety. Unfortunately I do not measure any charging current (either AC or DC) and the battery is equipped with 800mA (for ignition without light). If someone could give me a tip… Thanks in advance