Magic Mouse keeps disconnecting from bluetooth

Try this. might help

1. From the OS X desktop, hold down the Shift+Option keys and then click on the Bluetooth menu item to reveal the hidden Debug menu
2. Select “Reset the Bluetooth module” from the Debug menu list

3. When finished resetting, reboot the Mac as usual and go through the process of connecting the Bluetooth device(s) to the Mac as you typically would, everything should now work fine. (If you have another set of keyboard and mouse reset all connected apple devices and restart.)

Hope this will help.

***Thanks to our friend Keir over at MacKungFu for discovering the debug menu item ***

ArunA

<Links Edited by Host>

It really is worth fixing! Best mouse!

My magic mouse suffered from the batteries shifting downwards and not along the length:

When I lift the mouse and it hits the surface again. If your setup has multiple displays you do this a lot. And sometimes everyone reaches the end of the proverbial mousepad but needs to go... further.

THE FIX - I saw great suggestions of ~ 1 x 1" cardboard tile taped to the inside of the battery cover, i could only find a thin paper so I used a dime instead. Placed between the battery cover and the batteries It is slightly too thick but the problem disappeared instantly. I can mouse as athletically as I please now.

So I think it was not the length of my batteries but the diameter. And definitely not inerference or settings in OSX.

The issue definitely did vary between battery brands, but the big brands failed me sometimes too!

EDIT [[The reason it sometimes seems to re-connect on its own is probably the fact that people turn it upside down to check the green light or if there is debris on the lens, and they fall back ito place.]]

Regarding the very helpful video you linked...

Tip - would skip to the second part of the solution- fill the space between batteries and cover -

which works on its own.

There is no problem with the snugness of the connectors - the springs are good and firm, but when the batteries shift down, the connector is at an angle. Pre-flexing the springs does not make them stronger, it just gives them less range by deadening the first portion of the range. When the mouse hits a bump or you set it back down, they can still shift down.

Also, regarding the first part of the solution, if the two pieces of aluminum shift slightly and touch each other, you will have a short circuit situation, albeit at low voltage.

I never had this issue for over 3 years and it only started recently.

After reading some responses mentioning the batteries,

I noticed that the ones I was using ("Everyday" brand) had a pointy tip at the positive end,

while those I was using before were flat at that end.

I just replaced the batteries with some "Energizer" alkaline and the problem disappeared.

Before that, I kept cleaning the battery tips and the battery contacts on the mouse and it was

working for a while but then it would start again.

I hope that helps.

I feel so stupid now...checking my battery compartment appears some dirt on the contacts! Scraped off and fixed my problem. I was getting drop outs and felt it was the battery not connecting as it wasn't consistent with it drops! Seems to have resolved my issues now!

It is most likely the contacts. Doesn't matter the "quality" of the battery. I have Apple's batteries and it occasionally happens to me. To check, delete the mouse in Bluetooth preferences, turn the mouse off, then on, don't use the mouse. Set it someplace near that you won't jostle it. Pair it again. If it stays connected, after a while (like much longer than it took to disconnect previously) start to use it. If it disconnects, it's likely a contact issue. See other posts for cleaning the contacts in the mouse and on the batteries. Suggestions elsewhere indicate some tips to force a better connection, or resetting the bluetooth module, but I've not had to do any of those things.

I have Magic Mouse 1st Gen and it keeps disconnecting too. I tried all the solutions I could find: resetting PRAM, deleting preferences, adding in Favorites, changing batteries, putting aluminium foil, putting a folded piece of paper... nothing works. I have an Apple Keyboard and it works fine, without disconnecting at all, so the problem isn't the BlueTooth of the MacBook (Pro 15-inch, 2012, El Capitan). Any suggestions?

Many thanks. So far deleting it from Bluetooth and re-pairing it seems to have worked. We'll see if that solves the problem permanently. I don't think it was ever a battery problem, as it always showed as 100% or nearly so (after replacing my old batteries).

Earlier this year, my wife's iMac began failing in ways that had Apple support scratching their collective heads. So insidious was this iMac fail (covered by Apple care) that even after letting their techs have it in their possesion for 48 hours, they finally said (similar to Penn & Teller saying to a visiting magician, "You fooled Us"), Mr & Mrs H, here's the problem. You have a lifetime guarantee and we can't fix it. So they shot us. No no no, that didn't happen. They said, your iMac is obsolete now so we have to replace it with an all new iMac. I gave my old iMac to my wife and took the new one so that my wife would not be plagued with any new features that she wasn't expecting. My old one was exactly like her old one and she is very happy with it to this day. Stay with me here. It's coming. The point, I mean.

With this new iMac came two new items that I wasn't even aware that Apple was selling. A keyboard and mouse that neither one uses removable batteries. They both plug into a lightning cable to recharge (just like my iPhone).

This is the SOLUTION to your wireless mouse that continually disconnects from Bluetooth. My new mouse has never disconnected unless I was charging it. No batteries that were made to incorrect specs, or had been shrunken or for some other reason, lost connectivity to the internals and therefore lost connectivity to Bluetooth.

Geet the new keyboard and mouse and GETOVERIT as the Eagles sing. (You remember the Eagles don't you?)