Product Parameters: Input Voltage 100 - 120 Volt, 47 - 63 Hz, Maximum Output Voltage 58.8 Volt, Maximum Output Current 4 Amp (±0.2Amps) Material: The smart charger power cord is 18AGW in line with North American certification, the shell is made of PC material UL94VO, insulated and drop-resistant features, built-in heat sink and fan at any time for the charger to efficiently reduce temperature Safety: Li-ion battery charger adopts CC-CV charging mode with over-voltage, over-charge, over-current, short-circuit protection and full-automatic stop function. DISPLAY ：The red and green lights on the display flash alternately when charging to show the charging voltage of the battery, when the battery reaches 100, the display voltage value is 58.8v, this is an automatic battery charger, it will turn off automatically when charging is complete to prevent overcharging Compatibility：58.8 Volt 4A 3 Prong Fast Charger can be widely used for 52 Volt Lithium Battery Pack. Specifications: Product name: 58.8V 4A Charger for 14S 52V Lithium Battery Material: UL94VO+PC Input: AC 100-120V, 50/60Hz Charging voltage: 58.8V Battery voltage: 50.4/51.2/52V Charge current: 4 Amp Max Note: 1. Do not use with lead-acid batteries. 2. Do not use in humid environments. 3. Once the battery is fully charged, disconnect the AC power supply. 4. Do not charge a damaged battery. 5. Do not use if the battery connector or polarity is incorrect. 6. When using this charger for the first time, pay attention to the battery temperature. If the temperature is too high, stop charging immediately. 7. If you have any questions, please feel free to let us know.