Lithium ion NB2LH Battery

Canon Lithium ion Battery NB-2LH

Canon NB-2LH Rechargeable Battery Pack for Digital Rebel XT/XTi, PowerShot S30/40/45/50/60/70/80, G7 & G9 Digital Cameras.
Battery Technology : LI-ION, 7.4V, 800mAh.
This canon nb-2lh digital camera battery 25% Off during Christmas Season.

This Lithium-ion nb-2lh battery eliminates the battery memory effect, so you can recharge whenever it's convenient with no worries about shortening the battery’s life or lessening its capacity. Spend more time shooting, and less time charging with top-quality NB-2LH battery.

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http://www.shopbatteries.co.uk/digital-camera-batteries/canon-nb-2lh.htm (uk shop)