1.battery for iPhone 2.Have factories for battery&package 3.1900mAh. 4.1-year guarantee, high ... and overload protection Switching voltage. high charging efficiencyCompatible with: Work for all iPhone 3G,iPhone,all iPod models,Mobile phones,MP3 & MP4 Players100% Brand ... for us. So pls advise your models, quantity and target price, then we would try to meet your need. Thanks. battery for iPhone 3G ...