This CTA digital battery replaces the Sony NP-FF70 digital camcorder battery. This high capacity lithium-ion battery pack doubles the running time when compared to the NP-FF50. It was designed to meet or exceed OEM specifications and is 100-percent compatible to the original equipment chargers. Power up with great savings from Overstock.com. Specifications: Chemistry: lithium-ion Voltage: 7.2V mAh (capacity): 1300mAh Run time (shooting time): up to 3 hrs Memory effect: no For use with the following Sony camcorders: DCR-IP1/DCR-IP5/DCR-IP5E/DCR-IP55/ DCR-IP7BT/DCR-IP7E/DCR-IP45/DCR-IP55/ DCR-IP220/GV-D1000/DCR-IP220BT/DCR-PC109/ and all similar models