Description: Könner & Söhnen KS 48V-DC is a petrol DC generator and backup charger for 50–55 V battery systems, especially 51.2 V LiFePO4 batteries. It is also suitable for compatible batteries with a charging voltage up to 55 V and for solar, wind, telecommunication and UPS systems. In AUTO mode, the unit monitors battery voltage, starts automatically when it drops below 50 V, and stops when the output reaches 54.5 ± 0.5 V and current falls below 20 A. MANUAL and EXTERNAL CONTROL modes are also available, with external control through CONTROL TERMINAL dry contacts. The unit features short-circuit, overload and overvoltage protection, an indicator system, and a transport kit with a foldable handle and wheels.