CR2330 and BR2330 Battery Equivalents

CR2330 and BR2330 batteries are lithium non-rechargeable 3.0V batteries commonly used in remote keys, remote controls, wearable electronics, calculators, CMOS batteries, etc.

CR2330 and BR2330 batteries share the same battery dimensions, but they differ in exact lithium battery chemistry. Hence, they also differ in their features and specifications.

Published: September 13, 2023.

CR2330 and BR2330 Batteries Features and Specifications

CR2330 and BR2330 batteries are button/coin cells featuring physical dimensions of 23 x 3.0 mm (~0.905511 x 0.11811) and are based on the following:

• CR2330 battery: Manganese-Dioxide Lithium battery chemistry,
• BR2330 battery: Carbon-Monofluoride Lithium battery chemistry.

As such, these batteries differ in their discharge and other characteristics.

CR2330 battery features a nominal capacity of ~265 mAh, a nominal voltage of 3.0V, and a cutoff voltage of 2.0V. Also, their standard continuous discharge current is up to 0.2 mA.

Thanks to Manganese-Dioxide Lithium battery chemistry, the CR2330 battery features a broad temperature range and a very low self-discharge rate, with a storage time of up to 5-10 years.

BR2330 battery features a somewhat smaller capacity of ~255 mAh, a nominal voltage of 3.0V, and a cutoff voltage of 2.0V.

Note: Older "BR" batteries feature a nominal voltage of 2.8V and a cutoff voltage of 2.25V.

BR2330 battery is intended for low-current applications since it features a standard continuous discharge current of ~0.03 mA.

But, the BR2330 battery also features a broader temperature range and a lower self-discharge rate, allowing most BR2330 batteries to have a storage life of 10+ years.

CR2330 and BR2330 batteries are not very common batteries but can be found in local hardware stores and online shops, especially Panasonic models.

CR2330 and BR2330 Batteries Comparison Chart

The following chart lists several button/coin 23 x 3.0mm batteries with their most important features and specifications:

As one can see, not many brands provide CR2330/BR2330 battery datasheets, but there are other brands on the market besides Panasonic.

CR2330/BR2330 Batteries Safety Issues

Modern CR2330/BR2330 batteries don't contain mercury and other heavy and toxic metals, but they nonetheless come in child/pet-proof packages.

Why?

Well, if swallowed, especially CR2330 batteries, body fluids short-circuit the battery, causing dangerous, even deadly, chemical reactions.

Thus, keep ALL batteries away from pets and kids, and if they get swallowed, contact the nearest emergency center (or vet) and act according to their instructions.

Please note that this is a very serious warning.