As a professional manufacturer ofli-ion battery, We have our factory in Shen zhen and we can production line any models at your request . Welcome to join in us for creating prosperous business together!!! for nokia battery BP-5M 2.FIT TO : BP-5M(5610XM/5700/5710XM/6110/6110n/6500s/8600/7279/7379/7390) 3.Normal capacity:850MAH 4.Standard voltage: 3.7v 5.Cell chemistryPCM : Li-ion battery 6.Guarantee time : 1 year 7.Work temperature:-15 + 50 8.Storage temperature : less than 45 9.Standby time : 3-6 days and long talking time 10.protect funtion: Built-in double IC to control over-discharge, over-current and short-cirsuit protection,more safeguard for using. 11.Gilded and flexible connecter, better conductive proferties, not easy to rust. 12.Safety and stable: Hi-tech lithium-ion battery, undergoes drop test, smash test and acupuncture testto ensure no fire and explosion in breaking . 13.A Grade Li-ion battery cell, high energy environmental protection battery, durable energy conservation. Because of exchange rate uncertain , the above products FOB prices to transaction bank exchange rates, so all the prices have to be eventually confirm after our confirmation If you want to get more information about our company products. please contact with us !