NP-BG1 Battery Technical Details:
Compact Type G InfoLithium rechargeable battery pack for the Sony DSC-N1 Digital Camera
Maximum Output Voltage- DC4.2V
Quick Charging
Battery Capacity : 3.4Wh
Charge with BC-CS3 battery charger or CyberShot Station cradle (sold separately)

NP-BG1 Battery Product Description From Amazon.com:
The Sony NP-BG1 is a Type G InfoLithium rechargeable battery pack for compact Sony digital cameras such as the DSC-N1. It has a battery life of approximately 270 images or a viewing time of approximately 200 minutes. It is enabled for Accupower for displaying the amount of minutes for remaining battery life. It has a power rating of 3.6-volts, 3.4-Wh (960 mAh) with no memory effect. The battery can be charged with BC-CS3 battery charger or CyberShot Station cradle (sold separately).

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