Home › By device › Garage Door Opener Remote
What battery does a garage door opener remote use?
Most garage door opener remotes take a CR2032 (3 V lithium coin cell). Some use CR2016 or A23 instead. Open the remote case (usually a visor clip or a small screw) and read the code printed on the old battery.
| Battery | How common | Size | Volts | Capacity |
|---|---|---|---|---|
| CR2032 | Most common | 20 mm × 3.2 mm | 3 V | ≈ 225 mAh |
| CR2016 | Also used | 20 mm × 1.6 mm | 3 V | ≈ 90 mAh |
| A23 | Older models | 10.3 mm × 28.5 mm | 12 V | ≈ 50 mAh |
Garage Door Opener Remote battery: what to know
- Most current clip-on and keychain garage remotes use a 3 V CR2032 coin cell.
- Some slim remotes use one or two CR2016 cells, and many older remotes use a 12 V A23.
- Wall-mounted keypads usually take a 9V battery.
- If the remote still does not work after a new battery, it may need to be re-paired with the opener using the Learn button on the motor unit.
How to check which battery your garage door opener remote takes
Open the remote case (usually a visor clip or a small screw) and read the code printed on the old battery. Battery codes are printed on the flat face of coin and button cells and along the side of AA, AAA and 9V batteries. Match the code exactly: a CR2025 or CR2016 is the same width but thinner, and a CR2450 will not fit.
A23: An A23 is eight tiny 1.5 V button cells stacked in one shell.