... 1A 3 output 3. Alu 12000mAh Power Bank External Battery Mobile Charger for iPhone HTC Samsung Specification BrandleadcoolModelLC-540Cell ... discharge,overcharge,overload,short-circuit,lightning protection function6.long battery lifespan,more then 500 times recharge cycle 7.the ... to activate product while recharging;Better fully charge/discharge battery up to 4 cycles before achieving full capacity ...