Magic Mouse keeps disconnecting from bluetooth

This happened the same for me today. I was really annoyed with the Apple Mouse being disconnected for 10 consecutive times from my iMac. It really annoys me the worst. What I have done is that I have managed to move my mouse around to check whether it still works.

Another problem for me is that after it disconnects, the battery level began to decrease. I don't know how could this happen.

Dude - this is TOTALLY works.....just clean the little aluminum censors. Problem all gone - thanks Cojcolds and all other who mentioned cleaning the sensors inside the MM housing. What a waste of precious design time. So happy this is fixed - been dealing with this off and on for a few years now and finally got tires and looked it up on line - even bought new MM's to resolve the problem. THIS WORKS.

Thanks, Solved my issue

Wow that really works, fixed it up right away. Thanks for sharing 🙂

This worked for me! Thanks!

what about those of us with an MM2 without a battery casing? I have tried 2 mice and they still sporadically disconnect & reconnect for no apparent reason.

craigriches wrote:

what about those of us with an MM2 without a battery casing? I have tried 2 mice and they still sporadically disconnect & reconnect for no apparent reason.

Then look for 2.4GHz radio interference. Bluetooth uses 2.4GHz.

• An over saturation of 2.4GHz WiFi base stations (apartment/condo complex)
• Microwave oven (2.4GHz is the frequency that vibrates water, which is why no commercial radio service wants it, as rain, humidity, fog, etc... will interfere with long range communications, so the FCC gave it over to low power unlicensed spectrum). So a Microwave oven that is leaking radio waves could interfere with 2.4GHz radios
• Poorly shielded USB3 device or poorly shielded USB3 cable <https://www-ssl.intel.com/content/www/us/en/io/universal-serial-bus/usb3-frequen cy-interference-paper.html>
• 2.4GHz cordless phones (could be a nearby neighbor)
• 2.4GHz baby monitors (could be a nearby neighbor)
• Something wrong with your Mac's Bluetooth antenna
• Your own Mac WiFi (for example if you use 2.4GHz WiFi, and not 5GHz). Less likely, but not unheard of.
• An interference list from Apple <Potential sources of Wi-Fi and Bluetooth interference - Apple Support>
• You can Google: "Mac Bluetooth interference" and most likely get some other ideas

Put some paper under the battery it will keep battery stable and not to move.

The cotton-bud and WD-40 worked for me. I have been having disconnection problems (several times a day) for months. Now been 3 days without a disconnection.

I just deleted this file: /Library/Preferences/com.apple.Bluetooth.plist and now it's working fine. No more disconnects. Thanks!

I though that it was the /Library/Preferences/com.apple.Bluetooth.plist file. This was not the case. The batteries were dropping in and out. So i stuffed some folded paper on top of the batteries and now it's working without any disconnects.

This is could be one the reason that your Magic Mouse keep disconnecting, Watch this video:

https://www.youtube.com/watch?v=7vlDEVfV45s&t=19s&list=PLmHY6oJldGa9MUncgKoCFeer ZcUnco8hY&index=14

It kept connecting and disconnecting. Naturally, I threw my mouse at the wall, it obliterated into pieces. I swear my computer is mocking me. "Connected" appears.

No clue why it works but turn the mouse upside down and smack it. Reconnects immediately. I guess it just needs to know who the Alpha is in the relationship.

Pealing of the plastic on the top of the positive end really helped, after months of continually disconnecting. I almost bought a wired mouse to solve the problem. Thanx a million Coreyem!!