2x Pack - Canon IXUS 40 Battery - Replacement for Canon NB-4L Digital Camera Battery (890mAh, 3.7V, Lithium-Ion) Replacement Canon IXUS 40 Battery Replacement for Canon NB-4L Digital Camera Batteries Quantity: 2, Lifetime Warranty Capacity: 890mAh, Upstart Battery Brand On Sale for a Limited Time!