This CTA Digital battery replaces the Canon NB-3L digital camera battery and was designed to meet or exceed OEM specifications and is 100-percent compatible to the original equipment chargers. Look to Overstock.com for the hottest deals on cameras and accessories. Specifications: Chemistry: Lithium-ion Voltage: 3.7V mAh (capacity): 790mAh Run time (shooting time): up to 1.5 hrs For use with Canon PowerShot SD100/SD10/SD110/Digital Ixus II.