54.6V 2A bicycle 48V Lithium-ion battery charger Item No.: IN550200   Features/ Functions Smart charger for 3.7 * 13S cell Li-ion battery pack Continuously monitor battery voltage Constant charging current /Voltage Terminate the charge once battery is full LED indicate the charge status    Safety standard approvals: UL, CUL, GS, CE, BS, RCM, PSE, CB, FCC, EMC, C-tick 3 years warranty        General Specifications Input :100-240VAC, 50/60Hz Output voltage : 32～ 54.6VDC Output current : 2A+/-5%   Inrush current : Limited 15A for a cold start No load standby power ≤0.5W Efficiency: 88% Min. Temperature: Case 75 ℃ Max. Operating temperature: -20℃ ～ +45℃ Storage temperature: -40℃ ～ +75℃ Operating relative humidity: 5%～95% RH Over load protection: Auto recovery Short-circuit protection: Auto recovery MTBF: 40000 hours full rated load operation at 25℃ FL5, No.62, Liusha S. RD., Shijie,Dongguan, Guangdong 523303 China 广东省东莞市石碣镇刘沙南路62号5层 Tel：+86(0)769-81812289 Fax：+86(0)769-81812989 E-mail: william@intaia.com Website: Http://www.intaia.com