AC to DC 54.6V 3A Battery Charger XLR: Input: AC 100-240V, Output: 54.6V 3A, 50-60 Hz, designed for 48v lithium battery pack, Don't use it for Lead Acid battery pack.
4 Multiple Output Heads: DC 5.5*2.5mm , 5.5*2.1mm 1-Prong male plug, 8 Prong female plug and 3 pin XLR male connector
48V Fast Charging Lithium Charger for eBike with LED Indicator: lamp glows red when charging and green when charging is complete
Multiple Safety Protection with 6 Safety designs make you safer and more assured in use,Overcurrent protection, Overvoltage protection, Short circuit protection, Overheating protection, Overcharge protection, Reverse protection
How to use 48v Lithium Battery Charger 3 pin XLR Plug: Dowload PDF User Manual by the link in this detail page, then you can follow the instruction step by step