Input: 100-240Vac; Output: 54.6V 15A. DC Connector Size: SB50 Plug connector. Energy efficient and stable 54.6V DC power supply for 48V 13S Lithium battery pack. Short circuit protection/ over current protection/ over voltage protection. Red light -- charging, green light -- charge OK, it stop automatically when the battery is full. This AC-to-DC regulated switching power adapter converts 100-240VAC to 54.6VDC, at a maximum output of 15A (819W). PRODUCT SPECIFICATIONS: Input : 100~240V AC 50/60HZ Output : DC 54.6V 15A Charge Battery type: 48V 13S Li-ion Lithium battery DC Connector Size: SB50 Plug Shell: Aluminum LED Display: Red:Charging Green: Charged fully Before your purchase, please check your original charger and make sure the OUTPUT and CONNECTOR size matches. PACKAGE INCLUDES: 1x Power Charger