Repair Guides — replace 86180-01 battery

How to change the battery on your CS540 / C054 headset? If you notice that a fully charged battery is no longer lasting long enough, you can replace it. The Part Number is 84479-01, 86180-01, and can purchase here; Slide the battery cover off and remove it from the headset. Pull the battery out of the attachment clip. Grasp the battery connector and disconnect from the headset. Plug the new battery to the battery connector. Once connected, slide the battery into place. Slide the cover back on and push it into place.