Garage remotes
Xianfeng YK remote (A27) battery
1 × 12V alkaline cell
Zhejiang Xianfeng’s YK remote controller manual (FCC filing) lists Battery: 12V A27. Thinner than A23 — match the diameter. Not a phone battery.
How to replace it
| How to open | Open the transmitter housing per the YK remote manual, replace the 12V A27 cell observing polarity, reseat the cover. If the indicator does not light, check the cell first. |
|---|---|
| Orientation | As marked in the transmitter battery compartment |
| Re-pair after change | Yes |
| Access | Simple screwdriver |
| Notes | Hopping-code remote at 433.92 MHz for Xianfeng control boxes — re-learn codes after service if the manual requires it. |
Important
- A27 is thinner than A23 — do not force the wrong diameter.
- Not a Samsung Galaxy A27 phone battery.
Sources
Helpful for this device
Optional tools for opening, testing or charging — separate from the battery answer.
- iFixit Essential Electronics Toolkit
Opening compartments that need precision bits
- 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 × A27 should restore Xianfeng YK Remote Controller (12V A27) if the battery was the problem. Work through the checks below before replacing the device.
- Check orientation
Confirm the cell is seated correctly: As marked in the transmitter battery compartment
- Check the battery type
This device needs 1 × A27 (alkaline). Rechargeable cells are not supported for this device. Same size does not always mean the same battery.
- Check known model-specific issues
Re-pairing or a short reset may be required after a battery change. A27 is thinner than A23 — do not force the wrong diameter. Not a Samsung Galaxy A27 phone battery.
- Confirm the battery itself
Try a known-good fresh cell of the exact code listed above.
- 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.