NP-BG1 replacement Li ion Battery for Sony digital cameras Never run out of battery power when you're just about to capture the perfect moment! Time to get extra power for your digital video camera /camcorder. This is a high capacity / rechargeable Li Ion Battery with premium battery cell. Best replacement for the original Sony NP-BG1 battery pack. Type: generic / aftermarket. Color: Black. Voltage: 3.7V. Accessory ONLY. Camera not included.