Targus Digital TGB-NB5L Lion Rechargeable Replacement Battery for Canon NB-5L Ultra high 850 mAh for powerful image taking 100% Memory Free Can be charged over 1000 Times Replaces Canon NB5L battery Takes up to 250 pictures per charge Compatible with PowerShot SD700IS, 790IS, 800IS, 850IS, 870IS, 880IS, 890IS, 900IS, 950IS, 970IS, 990IS, SX200IS, and similar model cameras.