To replace the battery in your HD Series remote, you'll need a paperclip or similar.
- Insert the paperclip into the hole on the back of the remote and push. The battery/button assembly of the remote will pop out.
- Use the paperclip to push the battery out of the battery clip. Note the orientation of the battery when removing it.
- Slide the new battery (CR2025) into the battery clip. The positive (+) side of the battery should face away from the PCB.
- The battery/button assembly is held in place with magnets, so once you've replaced the battery, slide it back into place.