... lead acid batteryBatterynumbers30~32pcsDC voltage360/384VDCFloat voltage360/432VDC (once of three months charge ,charge votage 435/464VDC)Charge powerRated power@ 20 ... % (with100% load)5. ApplicationsMD-C series is three phase in and out online UPS, mainly for the IT device, date center, precision ... equipment, Securities electric factory ,traffic, industry and so on Industrial three phase ups 50KVA