Sanyo UF553436 Battery - Replacement for Sanyo NP-40, UF553436 Digital Camera Battery (750mAh, 3.7V, Lithium-Ion) Replacement Sanyo UF553436 Battery Replacement for Sanyo NP-40, UF553436 Digital Camera Batteries Lifetime Warranty Capacity: 750mAh, Upstart Battery Brand On Sale for a Limited Time!