Chamberlain · Garage remotes
Chamberlain KLIK2U battery
1 × 9V alkaline
How to replace it
| How to open | Replace the 9-volt lithium battery when the backlight no longer illuminates on button press. |
|---|---|
| Low battery indicator | Backlight does not illuminate when a button is pressed |
| Notes | Chamberlain FAQ specifies 9-volt lithium for KLIK2U — not CR2032. |
| Access | Tool-free |
Important
- Identify by remote model (KLIK2U).
- Sibling trap: KLIK1U is CR2032; KLIK2U is 9V.
Sources
Helpful for this device
Optional tools for opening, testing or charging — separate from the battery answer.
- Ansmann Energy Check LCD
Quick household cell check (good / low / replace)
- ZTS Mini-MBT Multi-Battery Tester
More informative state-of-charge style checks across common formats
- Battery tester
Quick good / low / dead check for household cells
New battery but still not working?
A fresh 1 × 9V should restore Chamberlain KLIK2U if the battery was the problem. Work through the checks below before replacing the device.
- Check the battery type
This device needs 1 × 9V (alkaline). Rechargeable cells are only suitable when the manufacturer accepts that chemistry — set battery type in device settings if available. Same size does not always mean the same battery.
- Check known model-specific issues
Identify by remote model (KLIK2U). Sibling trap: KLIK1U is CR2032; KLIK2U is 9V.
- Confirm the battery itself
If you have a battery tester or multimeter, check the cell. A low open-circuit voltage often means replace; for rechargeable AA/AAA, a capacity test is more informative than voltage alone.
- 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.