Battery Equivalents and Replacements

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.

panasonic cr2330 1

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.

panasonic br2330

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:

Battery
Datasheet
Capacity Operating Temperature
Annual Self-Discharge Rate
Discharge
Current
Panasonic BR2330 255 mAh -30°C to +85°C 0.03 mA cont.
Panasonic BR2330A 255 mAh -40°C to +125°C 0.03 mA cont.
Panasonic CR2330 265 mAh -30°C to +85°C 0.2 mA cont.

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

loopacell cr2330

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.

CR2330 Battery vs. CR2320/CR2325 Batteries

CR2330 battery and CR2320/CR2325 batteries have very similar dimensions:

  • CR2330 Battery: 23.0 x 3.0 mm
  • CR2320 Battery: 23.0 x 2.0 mm
  • CR2325 Battery: 23.0 x 2.5 mm

While CR2320/CR2325 batteries may fit into the battery compartment of CR2330 batteries, they have smaller volume and thus smaller capacity and slightly lower maximum continuous and pulse currents.

Note: maximum currents and capacities are also brand-dependent, but generally, the larger the battery volume, the larger the other values.

Also, due to the smaller height, CR2320/CR2325 batteries may have slight issues with contacts.

Thus, if you do need a CR2330 battery, you can try to use CR2320/CR2325 batteries, but the reliability of your device may be an issue.

Personally, if you need a CR2330 battery, go for a CR2330 battery, and don't try CR2320/CR2325 batteries unless really necessary. And if you do so, you are doing it on your own responsibility.


Long Story Short: If you are looking for a lithium 3V non-rechargeable 23.0 x 3.0 mm battery, your best bet is a CR2330 battery from reputable brands like (Amazon links; the links open in the new windows):

Of course, there are other brands on the market as well. BR2330 batteries are not used as often as CR2330 batteries since modern CR2330 batteries also feature a broad temperature range and very low self-discharge rate.

However, if you do need a BR2330 battery, Panasonic BR2330 Batteries (Amazon link; the link opens in the new window) is highly recommended.