External cell phone batteries, 1/ capacity:2000mAh, 2/ portable charger could charge all iphones and Ipad,other mobile phone External cell phone battery charger for ... RoHS,ISO90015) Long life cycly, No memory, environment friendlyAdvantages:1) High energy density2) High working voltage for single battery ... consistency, low self discharge10) Light weight, small size External cell phone battery 2Ah-5Ah