CR-V3 battery

From Wikipedia, the free encyclopedia

A CR-V3 battery (sometimes CRV3) is a type of high-capacity battery used in various electronic appliances, including many digital cameras. It has the shape and size of two side-by-side AA batteries. This allows CR-V3 batteries to function in many cameras and other devices originally designed only for AA batteries.

The twin battery compartments of this Olympus bridge digital camera are each designed to accept either two AA cells or one CR-V3 battery.

Often, CR-V3 batteries are based on a non-rechargeable lithium battery chemistry, with a nominal voltage of 3 V (the same as 2 alkaline AA batteries). Rechargeable lithium-ion RCR-V3 batteries, with a nominal voltage of 3.7 V, are also available. Because both lithium and lithium-ion chemistries offer higher energy density than alkaline batteries or even NiMH rechargeable batteries, a CR-V3 battery will typically last much longer than a pair of AA batteries.

Some non-rechargeable CR-V3 batteries are made of two AA-sized batteries soldered together inside a plastic shell. These can be broken apart and installed in cameras with battery compartments that cannot accommodate CR-V3 batteries. However, many cameras not explicitly designed for use with CR-V3 batteries can in fact fit them.

[edit] See also

• Battery recycling

[edit] External links

• A review of rechargeable RCR-V3 batteries, from Steve's DigiCams. Explains how to determine if CR-V3 batteries will fit in a digital camera, and concludes that they offer longer battery life and better value than NiMH rechargeable batteries.