... western union.Charging methodcharge with constant current 1C to 12.8V, endoff voltage8.4V till charge ... experiment, with acupuncture, smash, drop, and so on.Application:1. Digital Products: Bluetooth, MP3,Mp4,Mp5 ... to get wet! 2.Don't charge, use and store battery near a heat source such as fire and heater ... and battery pack in any way! 5. Forbid to put the battery into microwave oven or pressure vessel! ...