... automatic battery charger uses the advanced non industrial frequency transformer switching power supply technology. It has small volume, ... and charger specification ItemPerformance ParameterAC/DC compatible inputAC220V±15%, 50/60hz inputCharge current 5A,8A,11A,15A,19A,23A,27 ... valve value, it’s 24V batteryEnvironmentWorking temperature(-20~50)°CStore temperature(-40~70)°CRelated humility90%(40±2°C ...