BESTON CR1220 Coin Cell Lithium Battery 3V 40mAh
The BESTON CR1220 is a 12.5 mm diameter, 2.0 mm thick primary lithium battery with a nominal voltage of 3 V and typical capacity of 40 mAh. Utilizing lithium manganese dioxide chemistry, it offers stable voltage output, low self-discharge, and a shelf life of up to 5–10 years. This one-button-size battery is ideal for low-drain applications such as watches, remote controls, medical devices, and backup clocks.
Features
- Provides a stable 3 V output and 40 mAh capacity.
- Compact 12.5 × 2.0 mm coin cell format, compatible with CR1220 slots.
- Low self-discharge (<1% per year), ensuring long-term usability.
- Non-rechargeable primary cell, requiring correct disposal.
- Suitable for use in a broad temperature range (typically –20 °C to +70 °C).
Specifications
| Specification | Details |
|---|---|
| Brand | Beston |
| Model | BST-CR1220 |
| Battery Type | Lithium Coin Cell |
| Nominal Voltage | 3V |
| Capacity | 4mAh |
| Diameter | 12.5mm |
| Thickness | 2.0mm |
| Shelf Life | Up to 10 years |
| Operating Temperature | –20 °C to +70 °C |
Applications
- Watches, key fobs, calculators, and glucometers.
- Real-time clock backups and sensor memory retention.
- Small remote controls and medical devices.
- Hobby electronics like LED lights and coin detectors.
Package Contents
- 1 x BESTON CR1220 Coin Cell Lithium Battery 3V 40mAh.



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