XBDY--900 Auto Chargeris a accumulator charger device which design for the standard control cubicle ,providing with intelligent charge, 12V/24V, auto protection functions. Fast charge,high efficiency charge revertation ,no danger of over charge is the main features. This can ensure and extend the life-span of accmulator. Related Specifications Working temperature: -20~50Degree Relative humidity95%40±2 Size: 250×210×67mm Net weight: 2.9 kg AC Input voltage:160~265V Frequency: 50Hz±10% Charge current optional: 6A8A10A12A14A16A18A20A23A26A30A Charge process: Constant Current-Fast Charge and Decreasing current-Float Charge with tiny current Fast Charge Voltage:15.5V/31V(Battery ON)14.5V/29VSealed Battery Floating Charge Voltage:3.5V/27V;