Wahoo · Cycling & fitness
Wahoo RPM Cadence battery
1 × 3V lithium coin cell
How to replace it
| Compartment | Top cover |
|---|---|
| How to open | Insert coin/flat tool in side indentation and twist to pry off face plate |
| Notes | Face plate should snap for a complete seal. LED blink confirms power. |
| Tools | Coin or flat tool |
| Orientation | Correct orientation indicated when LED blinks after closing |
| Seal / O-ring | Rubber O-ring must be properly seated; posts must align with lid holes |
| Access | Tool-free |
| Gasket / O-ring present | Yes |
Important
- Avoid bitterant coatings per Wahoo
- Wahoo recommends Panasonic or other name-brand CR2032 without bitter/child-deterrent coating — coated cells can reduce performance.
Sources
Helpful for this device
Optional tools for opening, testing or charging — separate from the battery answer.
- Coin cell / button cell battery tester
Quick check of CR / LR / SR button and coin cells before fitting
- 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 × CR2032 should restore Wahoo RPM Cadence if the battery was the problem. Work through the checks below before replacing the device.
- Check orientation
Confirm the cell is seated correctly: Correct orientation indicated when LED blinks after closing
- Check the contacts
Avoid bitterant coatings per Wahoo
- Check the battery type
This device needs 1 × CR2032 (lithium). Rechargeable cells are not supported for this device. Same size does not always mean the same battery.
- Check known model-specific issues
Rubber O-ring must be properly seated; posts must align with lid holes
- Confirm the battery itself
For most coin cells, fitting a known-good fresh cell of the correct code is simpler than capacity testing.
- 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.