DigiPower BP-CN5L Replacement Li-Ion Battery for the Canon NB-5L for use with Canon SD700IS, SD790IS, SD800IS, SD850IS, SD870IS, SD880IS, SD890IS, SD900, SD950IS, SD990IS, SD970IS & SX200IS Digital Cameras Replacement Battery for the Canon NB-5L Li-Ion Battery Built-in IC chip protects against overcharging Each charge lasts for up to 240 photos Li-Ion design provides fast charging and long life 3.7-volt battery and 900mAh capacity