... protection function, in the battery under voltage, over voltage, over current,over temperature, short-circuit, reverse connect etc an abnormal circumstance ... -60HZ100-240V 50-60HZOutput Power60W90W120WBattery Voltage24V36V48VBattery TypeLiMn2O4LiFePO4LiMn2O4LiFePO4LiMn2O4LiFePO4Charging constant-Voltage29.4V29.2V42V43.8V54.6V58.4VCharging constant-current2.0A2.0A2.0ASwitching Current0.1A0.1A0 ...