Mugen Power Extended Battery 1950mAh for HTC Sensation / HTC Evo 3D / HTC Amaze 4G This 1950mAh battery will last for about 30% longer between charging cycles than the original 1520mAh HTC Sensation battery and about 18% longer than the original 1730mAh HTC Evo 3D battery High Performance No Memory Effect Light Weight More capacity in the same form factor