Seidio Innocell 2600mAh Battery for BlackBerry Curve 8900 - Black Adds minimal amount of thickness and comes with a black replacement door to accommodate the larger size of the battery Capacity: 2600mAh To obtain the full capacity of your battery, leave the battery/your phone on the charger for an additional 2-3 hours after the charging indicator turns green or the battery status shows full. For use with: BlackBerry Curve 8900 Made from the highest quality Japanese cells Comes with a door in black with Seidio's signature soft touch coating Adds only 3-4mm to your device Keeps your phone charged and ready to go, even with heavy phone and data usage