The G5.CT series are unidirectional regenerative sinks. It was developed specifically for testing chargers and is suitable for use in laboratories and on test benches. The modular and finely graded G5.CT series is characterized by highly dynamic response times and a wide current-voltage range with an auto-ranging factor 3. The G5.CT series can simulate the electrical charging characteristics of a modern battery pack. This includes active voltage output and Ri realtime simulation.