They’re different types of button/coin cells and typically aren’t interchangeable.

• Voltage & chemistry: LR44 is an alkaline 1.5V button cell. A CR1220 is a 3V lithium coin cell.
• Size: LR44 is about 11.6 mm in diameter and 5.4 mm thick. CR1220 is 12 mm in diameter and 2.0 mm thick.
• Fit & performance: Because the size and voltage differ, swapping one for the other can lead to poor fit or unreliable operation.

Tip: Check the code printed on your old battery or inside the battery compartment. Matching the exact size and voltage listed by your device can help maintain proper performance, though results can vary based on the device’s power needs.

CR1220 identifies a 3V lithium coin cell that’s 12 mm x 2.0 mm. You may see compatible codes from different packaging or references, such as:

• DL1220
• ECR1220 or E-CR1220
• 5020LC
• SB-T13
• L04

These codes point to the same size and nominal voltage. To confirm compatibility:

1. Match the 3V rating and the 12 mm x 2.0 mm size.
2. Check the code on your old battery or device manual.
3. Inspect the battery compartment marking for “CR1220” or an equivalent code.

Choosing a coin cell that aligns with your device’s specifications can support reliable function, but performance may vary by device and usage.

Both are 3V lithium coin cells, but their sizes and capacities are different, which affects fit and runtime.

• Size code meaning: The first two digits are the diameter (mm), and the last two are thickness (tenths of a mm).
• CR1220: 12 mm diameter, 2.0 mm thick.
• CR2032: 20 mm diameter, 3.2 mm thick.

Because a CR2032 is significantly larger, it usually won’t fit a compartment designed for a CR1220. Even though both are 3V, use the size specified by your device. Installing a different size can lead to poor contact or damage. When in doubt, check the code on the original battery or the device manual for the correct fit.

Proper installation can help your device work as intended.

1. Power off the device before opening the battery compartment.
2. Note polarity: Look for “+” and “–” markings. The “+” side of a CR1220 often faces up, but always follow the device’s marking.
3. Handle by the edges to keep oils off the surfaces.
4. Insert gently until the cell sits flat and secure—don’t force it.
5. Close the cover fully and test the device.

Safety tips: Keep coin cells out of reach of children, avoid mixing old and new batteries, and don’t carry loose cells with metal objects. Dispose or recycle used batteries according to local guidelines. Following the device’s instructions can support better performance, though results vary by use.

Good storage practices can help maintain a CR1220’s charge over time.

• Keep in original packaging until use to limit shorting and air exposure.
• Store cool and dry: Room temperature, away from heat and humidity; avoid direct sunlight.
• Avoid metal contact: Don’t store loose batteries with keys, coins, or tools.
• Rotate stock: Use older cells first and check date codes where available.
• Separate new and used cells to prevent confusion.

Safety: Keep coin cells out of reach of children and follow local recycling or disposal rules. While many lithium coin cells hold charge for extended periods, actual shelf life can vary based on storage conditions and the specific cell.