GPS battery 1)Dual IC protection 2)3.7V 1000mAh CE, ROHS 4)safe and long cycle life ... flexible connecter, better conductive properties, not easy to rust.3.Safety and standble:Hi-tech lithium-ion QCBefore fixing, ... little or no power, so please charge it for about 3 - 4 hours before using.When we shipement, we ... Good after-sales service!Welcome your OEM&ODM orders. 3.7V 1000mAh high quality GPS battery