Package contain:

1 or 2 battery + 1 charger 

Compatible model:

Sony Ericsson J300 K510i Z550a K310 J300C X0001 Z550C K320 K310i W200 Z550i Z558 K310c K510c

Battery

Battery Model :BST-36

Battery capacity :780mAh 

Charger

1..Short circuit and overload protection.

2.This Charger Just Fit For The Battery (32mm<=width<=55mm).

3.Suit For many more rechargeable lithium-ion batteries under 4.7 volts.

Intelligent dedicated battery charger with USB output.

4.When the battery is fully charged,automatically stop charging.

5.Safety cut out circuit,Built-in protection circuit prevents overcharging.

6.Constant current,constant voltage charging,automatic identification.

7.The high-quality LCD screen indicates connection and full charge.

8.Also convenient to interchange your spare batteries.