The following Nikon P7000 battery life numbers (how many photos can be taken before power from the Nikon EN-EL14 7.4V, 1030 mAh Lithium Ion battery pack runs out) is extracted from the Nikon P7000 Manual and the Nikon P7000 Specifications page.
The manual gives the following explanations on how battery life testing is conducted:
- Unless otherwise stated, all figures are for a camera with a fully-charged Rechargeable Li-ion Battery EN-EL14 operated at an ambient temperature of 25°C (77°F).
- Based on Camera and Imaging Products Association (CIPA) standards (see the section titled “Standard Procedure for Measuring Digital Still Camera Battery Consumption” for more information) for measuring the life of camera batteries. Measured at 23 (±2)°C (73 (±4)°F); zoom adjusted with each shot, flash fired with every other shot, Image quality set to Normal, Image size set to 3648×2736. Battery life may vary depending on shooting interval and length of time menus and images are displayed.
Approximate number of still pictures: 350 shots.
Approximate movie shooting duration / time / interval: 2 hours 45 minutes (HD 720p (1280x720)).
Refer to page 210 of the P7000 Manual for Nikon’s advice on maximizing battery life and performance. One notable point is that the battery should be recharged and then completely exhausted or run flat with the camera at least once every six months before being returned to storage in a cool location.