1.built-in input interface (micro)  apple output.2.capacity 1800mAh3.adop intelligent charging system, capacity conversion rate above 90%4.connet with external power adaptor simultaneously charge for mobiles.5.special use for iphone 3 series

battery cell: 3.7v/1800mAh

input : DC5.0V/0.5A(max)

output: DC5.0V/0.5A(max)

dimension: 114×65×20mm

weight: 80g

Emergency Mobile Phone Battery Charger 1800mAh, moving charger/ portable power bank for iphone3