Dopod WIZA16 battery by Amstron is designed for use with 838, WIZA100, K-JAM, Xda Mini Pro, MDA Vario. The Amstron PDO-12 is designed to replace OEM battery part numbers WIZA16, 9100. Amstron PDA batteries are precision-engineered and rigorously tested for voltage, capacity, compatibility and safety to exceed original equipment manufacturer specifications. • Chemistry: Li-Ion • Ratings: 3.7V 1250mAh • Dimensions (LxWxH): 2.05'' x 1.45'' x 0.25'' • Warranty: 1 Year * Warranty covers any manufacture defect. Warranty does not cover damages due to misuse of the battery nor diminishing run time due to normal wear and tear.