CTA Replacement Battery for Sony NP-FT1 This CTA digital battery replaces the Sony NP-FT1 digital camera battery. It was designed to meet or exceed OEM specifications and is 100-percent compatible to the original equipment chargers. Specifications: Chemistry: Lithium-ion Voltage: 3.6V mAh (capacity): 800mAh Memory effect: no For use with Sony DSC-T1 digital camera. Model # NP-FT1 Capacity: 800 MAH Voltage: 3.6V Inner: 10 Master: 40