Extra long stand-by time
Compatible with original chargers
Specific intelligent Li-ion PCM, rechargeable Li-ion battery
Replacement battery for your phone provide you an alternative

High capacity and low impedance, no need to worry your mobile phone running out power on the go
Integrated power management circuits - protect against over-voltage and under-voltage conditions and maximize battery life between charges, minimize charge time, and lengthen overall battery life, provide the best possible performance
Easy to replace the battery and awaken your phone, keep you at the most recreational state
High quality replacement battery
Compatible with: 
Nokia 8210 8850 8890 8250 8310 3610 5210 6500 6510 7210 7650 8855 8910
And more compatible types were not list entirely
Rating: DC 3.6v 750mAh

1 x BLB-2 Battery For Nokia 8210 8850