Premium Rechargeable Battery for Canon NB7L. The Delkin NB7L rechargeable lithium-ion battery is designed & manufactured according to original. Canon specifications & ratings & guaranteed to be 100% compatible with Canon NB7L compliant cameras & chargers. Its is rated at 940 m. Ah & 7.4 V. to provide you with a longer run time between charges & backed by a Delkin 2 year warranty. High quality cells & advanced manufacturing standards produce a battery that will deliver significantly more charge cycles over time & more power per charge. Since Delkin&8217;s rechargeable batteries are not hindered by a memory effect, you can charge your battery at any given point at any stage in the charge cycle without causing damage to the cells.