NB-1LH - High capacity rechargeable battery for all digital IXUS cameras
For powerful image making you need... power! Lithium-ion batteries allow you to be certain that you wont run out. Lithium-ion batteries dont require being fully run down to be recharged with peak performance. So no more guessing how close you are to the end of the battery, worry no more about shortening the battery life by frequent recharges
Canon Battery NB-1LH Li-Ion xV for Digital IXUS, 840 mAh, 3.7 V, Lithium-Ion (Li-Ion)
Canon Battery NB-1LH Li-Ion xV for Digital IXUS. Battery technology: Lithium-Ion (Li-Ion), Battery performance: 840 mAh, Battery voltage: 3.7 V. Weight: 29 g