CR-V3 battery

A CR-V3 battery (sometimes CRV3) is a type of disposable high-capacity 3-Volt battery used in various electronic appliances, including some digital cameras. It has the shape and size of two side-by-side AA batteries.[1] This allows CR-V3 batteries to function in many (though not all) devices originally designed for only AA batteries. An RCR-V3 battery is a rechargeable 3.7 V lithium-ion battery.

The battery compartment of this camera is designed to accept four AA cells or two CR-V3 batteries.
A CR-V3 battery with matchstick and AA battery for comparison.

Disposable CR-V3 batteries

Often, a CR-V3 battery is a single cell based on a non-rechargeable lithium battery chemistry, with a nominal voltage of 3 V (the same as 2 alkaline AA batteries). Because both lithium and lithium-ion chemistries offer higher energy density than NiMH rechargeable batteries or even alkaline batteries, a CR-V3 battery is designed to last much longer than a pair of AA batteries. [2] Some more recent CR-V3 batteries are composed of 2 lithium AA batteries.[3]

Rechargeable RCR-V3 batteries

Rechargeable lithium-ion RCR-V3 batteries, with a nominal voltage of 3.7 V, are also available. Some have a third smaller terminal used for charging and may not be compatible with chargers from different manufacturers.

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See also

References
  1. http://data.energizer.com/PDFs/crv3.pdf
  2. Wrotniak, Andrzej (1 February 2005). "The rechargeable RCR-V3 battery: An alternative to NiMH AA's?". Retrieved 11 December 2009.
  3. "Battery equivalents guide". Friday, 4 October 2019
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