Asus 07-016306345 battery by Amstron is designed for use with P505. The Amstron PAS-12 is designed to replace OEM battery part number 07-016306345. 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 1100mAh • Dimensions (LxWxH): 2.25'' x 1.84'' x 0.31'' • 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.