The Sony NP-FW50 Lithium-Ion Rechargeable Battery is unique in its design since it not only supplies power to your camera but will display the remaining battery capacity. Small and lightweight, lithium-ion batteries can be charged or discharged at any time without developing memory effects.
Beware of FAKE Sony battery in the market
How to identify Fake Sony Battery?
Fake vs Original
|Output Voltage||7.4 V|
|Dimensions||1.25 x .75 x 1.8" (31.8 x 18.5 x 45.0mm)|
|Weight||Approximately 1.5 oz (42.5 g)|
|Package Weight||0.2 lb|
|Box Dimensions (LxWxH)||5.5 x 3.4 x 0.9"|