Bose · Remotes & audio
Bose SoundTouch 300 Soundbar Remote battery
2 × 1.5V alkaline cell
How to replace it
| How to open | Slide open the battery compartment cover on the back of the remote. Insert two AAA (IEC-LR3) 1.5V batteries matching polarity marks. Slide the cover closed. |
|---|---|
| Orientation | Match +/− marks in the compartment |
| Notes | SoundTouch 300 soundbar owner's guide: two AAA alkaline for the universal remote. |
| Access | Tool-free |
Important
- 2× AAA — not CR2032. Confirm SoundTouch 300 remote, not a later coin-cell Bose Smart Soundbar remote.
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 2 × AAA should restore Bose SoundTouch 300 Soundbar Remote if the battery was the problem. Work through the checks below before replacing the device.
- Check orientation
Confirm the cell is seated correctly: Match +/− marks in the compartment
- Check the battery type
This device needs 2 × AAA (alkaline). Supported chemistry: alkaline. Rechargeable cells are not supported for this device. Same size does not always mean the same battery.
- Check known model-specific issues
2× AAA — not CR2032. Confirm SoundTouch 300 remote, not a later coin-cell Bose Smart Soundbar remote.
- 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.