Liftmaster K010A0056, BATTERY, 3V, CR2451
The LiftMaster K010A0056 is the LiftMaster service reference for a 3V CR2450 lithium coin-cell battery used in select LiftMaster and Chamberlain remote controls and wireless accessories. Coin-cell batteries are common in compact accessories where a standard 9V battery would not fit.
A low CR2450 battery can cause poor range, slow button response, intermittent activation, or an accessory that works only when held close to the receiver. Since coin cells can look similar, the number printed on the old battery is the best confirmation.
Important: the uploaded row has a title/name mismatch because one field mentions CR2450 and another mentions CR2451. Stronger manufacturer references identify K010A0056 as CR2450. Verify your physical inventory label before importing this item live.
Features & Specifications
| Manufacturer | LiftMaster / Chamberlain Group |
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| Product Type | Lithium coin-cell battery |
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| Part Number | K010A0056 |
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| Battery Type | CR2450 |
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| Voltage | 3V DC |
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| Application | Select remote controls and wireless accessories |
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| Compatible Operator Type | Accessory battery service item; compatibility depends on the remote or accessory |
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| Status Note | Manufacturer references list this service part as discontinued with no direct LiftMaster replacement part |
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Compatible With
Compatible with select LiftMaster and Chamberlain accessories that specifically call for a 3V CR2450 coin-cell battery. Typical supported applications include:
- Select LiftMaster remote controls that use CR2450 batteries
- Select Chamberlain remote controls that use CR2450 batteries
- Select wireless accessories that specify K010A0056 or CR2450
- Compact accessory controls where the old battery is marked CR2450
- Not for accessories that use CR2032, CR2016, CR2025, or 9V batteries
Also Known As / Related Part Numbers
- K010A0056
- 010A0056
- 10A56
- CR2450
- 3V CR2450 battery
- CR2451 - row text conflict; verify inventory before upload
Technician Note
Do not choose a coin-cell battery by diameter alone. Similar battery numbers can have different thickness, capacity, or contact fit, and the wrong coin cell can cause weak contact inside the accessory.
Before Ordering Checklist
- Confirm the old battery is marked CR2450.
- Review the remote or accessory manual for the required battery type.
- Check whether your inventory label says CR2450 or CR2451.
- Clean light corrosion from battery contacts before replacing the accessory.
- Do not use this part for opener backup battery service.
Professional Advisory
Battery replacement is low-voltage accessory work. If an access-control device still fails after installing the correct battery, check receiver programming and signal compatibility rather than bypassing any safety or access-control equipment.
Important Ordering Warnings
- Manual review recommended: uploaded name mentions CR2451, while stronger LiftMaster references list K010A0056 as CR2450.
- This is not a 9V battery or rechargeable backup battery.
Product Questions & Answers
Is K010A0056 a CR2450 or CR2451 battery?
LiftMaster references K010A0056 as a 3V CR2450 battery. The uploaded row contains CR2451 wording, so the physical inventory label should be reviewed before upload.
Can I replace a CR2450 with a CR2032?
No. Even though both are 3V coin cells, the size and fit are different. Use the battery type called out by the accessory manual or the old battery label.
What accessories use this battery?
It is used with select LiftMaster and Chamberlain remote controls and wireless accessories that specify a CR2450 coin cell.
Is this part still available from LiftMaster?
Manufacturer references list K010A0056 as discontinued with no direct LiftMaster replacement part, though standard CR2450 batteries may be available from battery suppliers.
Will changing this battery erase remote programming?
Most remotes retain programming during a battery change, but a completely dead battery or old accessory may require testing and reprogramming after replacement.
