Magic Mouse 2 stopped working and won't pair

It sounds like your Magic Mouse may simply be stuck in a pairing or power state rather than having a failed battery or Bluetooth radio. These mice can occasionally stop advertising themselves over Bluetooth until they are properly reset and connected via cable. Since you removed it from the Bluetooth list, the easiest way to force the pairing process again is to connect it directly to the Mac first.

Before proceeding, I testing it with another Mac or iPad. If it behaves the same there, the hardware is likely the culprit ... and should that be the case, your done troubleshooting.

Please try the following steps:

1. Turn the Magic Mouse of* using the switch on the bottom.
2. Connect the mouse to the MacBook Pro using a Lightning cable.
3. Turn the mouse back on while it is still connected.
4. Wait about 5–10 seconds — macOS should automatically detect and pair it.
5. Once it shows as connected, you can unplug the cable and use it wirelessly.

If that does not work, try this additional reset:

1. Go to System Settings → Bluetooth
2. Toggle Bluetooth off, wait about 10 seconds, then turn it back on.
3. Turn the mouse off, wait 15 seconds, then turn it on again.
4. Check if Magic Mouse appears in the Bluetooth devices list.

A couple other things worth checking:

• Make sure the Lightning cable is capable of data, not just charging. Some cables will charge the mouse but won’t allow pairing.
• Let the mouse charge for at least 20–30 minutes to rule out a deeply discharged battery.

If the mouse still does not appear in Bluetooth or respond while connected by cable, then you may indeed be looking at a battery failure or internal hardware issue.