Aviation headsets
David Clark DC ONE-X (dual GA) battery
2 × 1.5V alkaline cell
How to replace it
| How to open | Control module uses two AA batteries. Replace when depleted for continued ENC/Bluetooth operation. |
|---|---|
| Notes | Operating voltage 3 VDC (2× AA). Sibling DC ONE-XP is aircraft-powered (6-pin / XLR-5). |
| Access | Tool-free |
Important
- Dual GA battery model — not DC ONE-XP panel-powered variants.
- DC ONE-XP: aircraft power primary; batteries only if panel power unavailable or disconnected.
Sources
Helpful for this device
Optional tools for opening, testing or charging — separate from the battery answer.
- Panasonic eneloop AA (LSD NiMH)
Replacement AA cells when the device accepts NiMH
- Panasonic eneloop BQ-CC55 charger
Everyday NiMH AA/AAA charging (eneloop ecosystem)
- Battery tester
Quick good / low / dead check for household cells
New battery but still not working?
A fresh 2 × AA should restore David Clark DC ONE-X (dual GA) if the battery was the problem. Work through the checks below before replacing the device.
- Check the battery type
This device needs 2 × AA (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
Dual GA battery model — not DC ONE-XP panel-powered variants. DC ONE-XP: aircraft power primary; batteries only if panel power unavailable or disconnected.
- 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.