SMPS battery chargers Auto Charger- 30A,12/24V, AC input voltage:160~ ... Fast charge/ floating charge auto transform,prote XBDY- 900 Auto Battery Charger- 30A,12/24V, Auto transform900 is a accumulator charger ... -float charge with tiny currentFast charge voltage: 15.5V/31V(Battery ON),14.5V/29VSealed BatteryFloating charge voltage: 3.5V/27Vhttp ...