2000mAh Extended Battery fits Sprint Touch MP6900, Dopod Touch S1, UTStarcom MP6900, Vogue, HTC Touch P3050, P3450, HTC Elf, Vogue 100, O2 XDA Nova, i-mate Touch, T-Mobile MDA Touch, NTT DoCoMo FOMA HT1100 Series High Quality, high capacity, light weight rechargeable DC 3.7V Li-Ion 2000mAh battery. Larger size compared with the original battery. A special design black colored battery door is provided as the original battery door cannot be use with this battery. Longer battery life than the original battery that comes with the cell phone. Best replacement for the original Sprint Touch MP6900, Dopod Touch S1, UTStarcom MP6900, Vogue, HTC Touch P3050, P3450, HTC Elf, Vogue 100, O2 XDA Nova, i-mate Touch, T-Mobile MDA Touch, NTT DoCoMo FOMA HT1100 battery pack. No memory effect. Can be charged or discharged as needed without loss of capacity.