LiftMaster · Garage remotes
LiftMaster 893MAX battery
1 × 3V lithium coin cell
LiftMaster 893MAX takes 1× CR2032 (positive side up). Do not buy CR2016 from a 895MAX guide. Identify by the remote model printed on the transmitter — not the opener model alone.
How to replace it
| How to open | Open the case as shown. Insert coin cell positive side up (+). |
|---|---|
| Orientation | Positive (+) side up |
| Low battery indicator | LED(s) stop flashing when battery is low |
| Notes | Shared MAX sheet with 890MAX (CR2032) and 895MAX (CR2016). |
| Access | Tool-free |
Important
- Identify by remote model (893MAX) — not opener model.
- Sibling 895MAX uses CR2016, not CR2032.
Sources
Helpful for this device
Optional tools for opening, testing or charging — separate from the battery answer.
- Coin cell / button cell battery tester
Quick check of CR / LR / SR button and coin cells before fitting
- Fluke 101 Digital Multimeter
Accurate open-circuit voltage and basic electrical checks
- Digital multimeter
Measure open-circuit voltage and general electronics checks
New battery but still not working?
A fresh 1 × CR2032 should restore LiftMaster 893MAX if the battery was the problem. Work through the checks below before replacing the device.
- Check orientation
Confirm the cell is seated correctly: Positive (+) side up
- Check the battery type
This device needs 1 × CR2032 (lithium). Rechargeable cells are not supported for this device. Same size does not always mean the same battery.
- Check known model-specific issues
Identify by remote model (893MAX) — not opener model. Sibling 895MAX uses CR2016, not CR2032.
- Confirm the battery itself
For most coin cells, fitting a known-good fresh cell of the correct code is simpler than capacity testing.
- Still not responding?
If a correct, fresh battery installed properly does not restore the device, the fault may be elsewhere — the device may need service or replacement.