This high-capacity lithium-ion rechargeable battery is a replacement for the Canon NB-5L batteries.Our batteries feature lithium-Ion technology, which ensures maximum battery life and maximum power. Also, lithium batteries are lightweight and can be charged or discharged at any time without developing so called memory effect, so they never lose their ability to hold a full charge. Battery charger is 100% OEM Compatible Guaranteed to meet or exceed OEM specifications.