Nokia BL-6P/BL6P Lithium Ion Battery for Nokia 6500 Classic/7900 Prism - Original OEM - Non-Retail Packaging - Black This BL-6P battery by Nokia provides 830 mAh of power to its compatible devices and optimizes performance allowing you to get the most out of your phone per charge. With Nokia's advanced lithium ion technology you can rest assured you're getting the best possible most lightweight and long lasting power out of your battery. Use Nokia OEM batteries when you need the best possible performance and longest lasting power. OEM Nokia Part Numbers: BL-6P/BL6P .