Sony NP-FF50 and NP-FF51 Batteries by Amstron are designed for use with Sony DCR-IP, DCR-PC, and F Series. Amstron Camcorder batteries are precision-engineered and rigorously tested for voltage, capacity, compatibility, and safety to exceed original equipment manufacturer specifications. • Chemistry: Li-Ion • Ratings 7.2 Volts 630mAh Capacity. • Warranty: 4 Years *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.