Cell phone battery BST-30:
Item: mobile phone battery for SONY ERI
Normal capacity: 700mah to 1000mah
Standard Voltage3.7v

Cell phone battery BST-40:

1,  Double-protection IC with NTC BCB offer over-charging, over-discharging, over-current and short circuit protection

2,  Gilded and flexible connecter, better conductive property

3,  Safety and stable: Hi-tech lithium battery undergoes drop test, and puncture test to ensure no fire and explosion in breaking

4,  Grade A Li-ion battery cell, high energy environmental protection, durable energy conservation long standby time and long talking time

5, Compatible model: SONY ERICSSON K300 Z500 T238 Z208 T208 T220 T226 T230 T280 K700 K500 J200 T290 K506 K508 K516 J210 F500      

6,  Warranty: 12months

7,  Working temp: -15degrees Celsius to degrees Celsius

For more details please feel free to contact us! Any questions will be welcome!