Battery for SanDisk Sansa c250 c240 c200 Series 2G 30-Day Money Back Guarantee & 1 Year Replacement Warranty! Capacity: 550mAh 3.7V (2.04 WHr) Dimensions: 56 x 26 x 4.4mm (LxWxH) Condition: Brand New - 100% OEM Compatible Type: Li-Po