The 'adaptive' control with microprocessor perfectly adapts the charge to the battery requirements (very important function in case of sealed batteries). 4-stage charge: bulk-absorption-float storage. The storage function automatically reduces to 13.2V/26.4V the FLOAT function thus minimizing gasification and corrosion of the positive plates.Technical data: Aluminium frame; Universal supply: 90/265VAC - 90/400 VDC - 45/65 Hz; Control LED lights; Internal temperature sensors; Cable voltage drop compensation; Protections against short circuit, polarity inversion, overvoltage, overheating, high voltage of the battery.