Zeikos ZE-NB4L Rechargeable Lithium Replacement Battery For Canon NB-4L, Compatible with Canon IXUS 115 HS, IXY 400F, PowerShot 600, A5, ELPH 100 HS, ELPH 300 HS, SD1000, SD600, SD750 & SD940 IS 900mAh Replacement for NB4L 100% Memory Free