The CRV3 battery (also known as CR-V3) is the top selling high-capacity battery used in cameras and portable electronic devices today. The CRV3 is the same size and shape of 2 AA batteries placed parallel to each other. It is because of this smart design that you can use CRV3 batteries in digital cameras and other portable devices that were originally designed for 2 AA batteries. CRV3 batteries also pack a high energy density than alkaline batteries and therefore last much longer.

The CRV3 battery gets its name from its 3 Volt (3V) rating. They come in several battery chemistries including non-rechargeable CRV3 lithium, rechargeable RCVR3 lithium, and NiMH rechargeable batteries. A Lithium Ion RCRV3 battery, which carries a 3.7V voltage, is also available.

The most common use of the CRV3 is to power digital cameras. Some older model cameras that were designed to only run only on 2 AA batteries will actually run surprisingly work well with a CRV3 battery installed. The biggest issue is determining if they will fit it the battery compartment. If your battery compartment is oval shaped you are in luck. Use the diagram below to help you determine if you can upgrade and take advantage for CRV3’s more advanced technology.

crv3 size chart

Note that two CRV3’s can also be combined to replace 4 AA alkaline batteries.

CRV3 Battery Advantages

Buying alkaline or rechargeable NiMH batteries is silly when you consider the CRV3 advantages which are listed below:

– Longer Lasting in use (10X the # of photos per battery)

– Longer Lasting when idle (hold charge 30% longer)

– Shorter charge time (20%) for RCRV3 than NiMH

– Longer Life Cycle – 800 charges for RCRV3 vs. 400 for NiHM

– Cheaper – 1/2 the price when measured in cost per photo

– Lighter (24%)