Extended battery provides extra battery energy, especially fit for the business men who are often on long trips and the PDA fans who oftenenjoy internet, play games and watch movies. Compatiblewith: Samsung Galaxy S i9000 SGH G7 G9Capacity:2800mAh, Use Voltage: 3.7V ,High-quality,Stable performance; Over current protection,Safe and Reliable; High capacity, longer talk and standby time;Non-mercury, lead, cadmium and other harmful substances.Packing includinga special back cover fit to MobileWhy do you choose the Yoobao brand batteries?1.YOOBAO well-known brand, industry pioneer, high-quality 2.A professional brand of PDA smartphones batteries 3.A brand of choosing out from fans and users 4.Valuable allows users to experience the quality, service valueService Guarantee: YOOBAO Company provide all user a battery warranty period of six months, during this period, if any case of problem please contact with the local distributor for exchange timely without of that bellow: 1. Non-legitimate channels for the sale of counterfeit batteries 2. Over the validity period; 3. Damage from users improper use, maintenance; 4. Unauthorized non-mender of our company and make it broken and damage; 5. Damage from force majeureNotes: Please do not ad arbitrium open the battery; and never put it in a more than 45 high temperature environment or under fire, otherwise the battery may cause explosion; the battery can not be placed in water or damp; not imposed by external forces on the battery or make it fall from a height; not to put the battery with the key, coins, and so on mixed together in order to avoid short circuit; use the original charger or a reliable charger.Help: In order to develop the batterys superior performance and extend its life, we should use it correctly. (1) Select a good charger. Normally, do not continually charge up more than 24 hours, and its better to continually charge 1-2 hours plus, after charge completed, (2) Recharge the battery unless the mobile indicate power near end. (If the battery is only be used in a half and then you charge it, this will be reduced its life. A spare battery must keep 40% of the electricity, because the battery itself has the function of self-discharge, if place a long time without using, battery will be self-discharged till use up, and make the battery a permanent damage.(3) Avoid a collision, no use in high temperature place and the weak signal place. And keep the battery in clean and dry. Friendly Tip: Playing games and sending SM frequently will loss lots of power easily. Purchase Tip: In order to ensure you purchase a genuine YOOBAO battery, it is recommended to buy it from the designated dealers, there you can obtain a better service.