1500mAh Internal Reliable lithium-ion Battery BF5X For Motorola Droid 3 XT860 XT862 DEFY MB525 BRAVO MB520 New 1500 Mah BF5X Internal Battery For Motorola Droid 3 XT860 XT862 DEFY MB525 BRAVO MB520 Phone disassembly is required to install this battery. Advanced lithium-ion technology keeps phone working at optimum performance Each item is tested before shipping and 100% working Keep an extra battery for your cell phone handy at home, in the office or on your travel