Magic Mouse keeps disconnecting from bluetooth

I Ended up buying an external usb bluetooth adaptor and it has not dropped in 3 weeks. Weak internal bluetooth, Chinese no doubt.

To all of you with your Magic Mouse magically disconnecting here's my solution (so far I "fixed" two MM).

the issue as some of you posted is the batteries loosing contact at some point on the Positive side of them, my two MM have a flimsy Positive contact and if I push them with a pen or something they will move from the bottom, not sure if this is by design or flaw, so when I move the MM to another place of my desk it disconnects from my MBP when it "hits" the desk.

So I taped four or five layers of scotch tape to the bottom of the batteries compartment on the Positive side for both of the batteries from side to side not affecting the Negative side. This will prevent the batteries from bouncing to the bottom of the mouse's battery compartment, I know this is upside down when I use the mouse but it keeps the batteries from moving and losing contact with the mouse.

If you notice it works better after doing the above recommendation but at some point it disconnects when hitting the you can do some layering of scotch tape on the inside of the battery lid, don't do it too tick or it will bend the aluminum lid. Be careful of not affecting the Laser.

Hope this makes sense and work for you too.

EUREKA!!

THANKS TO ALL OF YOU & THIS AMAZING INTERNET THING!

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I have been having the Apple Magic Mouse disconnecting from Bluetooth issue for months & months!

At one point I even got so frustrated that I "semi-involuntarily" 😉 tested the bounce recovery factor of it's manufacturing by propelling the mouse across the room into the opposite wall.

At the time I hoped it would explode into a thousand pieces and disappear like smoke in the wind. To my surprise I discovered that these little devices are seriously tough.

It not only didn't break but it still turned back on afterwards...still use it too. (Could've also been that it was a whimpy throw. hahaha!)

Anyway my point is that I did another search for how to solve this disconnection issue and came across post below by smgs18:

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smgs18 Sep 14, 2012 3:49 AM
Re: Magic Mouse keeps disconnecting from bluetooth in response to Dana Spiegel

I've had the same problem for a while now but I seem to have fixed it.

• Use a cotton bud and spray a small amount of WD-40 on one end
• Carefully clean all four contact points within the mouse (i.e. where the batteries connect to at each end)
• Use good quality batteries

Haven't had a problem since!

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SO With this new logical insight I performed the recommended procedure described by "smgs18" but changed the tool & cleaner below to fix my Apple Magic Mouse from disconnecting from Bluetooth.

(*sidenote: who'd of thought it was a battery connection issue...duh! hahaha!)

• Use a Q-Tip, light soaked in rubbing alcohol.
• Clean all four battery contact points within the mouse (i.e. where the batteries connect to at each end)
• NOTE: Better to use rubbing alcohol because WD-40 is a loosening lubricant and leaves an oily "slippery" film.

As a collective community we're all saving each other continued aggravation and $ Money ...and I didn't have to buy a new mouse!

Thanks again to all who posted!

Normally I have a bit of patience for these things but this is an $80 mouse....

Great fun this, isn't it !ll, I junked both my Magic Mice (Yes, Apple sent me one for free after all my complaints !) and got a different brand (sssh… Microsoft) wireless mouse which never fails. Unfortunately it uses one of my precious USB sockets. So the other day I brought out a Magic mouse for yet another try. I had previously put expensive Duracell Ultra Power batteries in there which were still like new but never worked, so I extracted them and put in some standard Duracells. BINGO ! It works again, no sign of dropping out ever since.

I actually still had some more totally new Duracell Ultras which I put in next as an experiment and… NOTHING-dead as a dead MM…So again…. Replaced with standard Duracells and it works again perfectly. No hint of a disconnect over past few weeks.

IT'S THE BATTERIES. Not even the make-just the way they happen to be constructed and sit in the space. These Duracells look identical to the naked eye but clearly there are some subtle differences in the way the different type sits in the compartment.

My feeling is, if the batteries don't work, or drop out a lot, just try some different ones. I cannot be fiddling about with cleaning contact points and such like. Worst case scenario-If I don't have any batteries in that do work, I'll use the Microsoft Mouse instead.

I just find out, some AA batteries are a bit shorter than others, after I changed to bigger ones my mouse its OK. Hope it helps.

All rechargeable batteries are bigger than standard ones.

I think that battery compartment is designed to work with big, solid batteries.

Apple fixed nothing in 5 years.

I bought my first MM with my first iMac in December 2009. I used the foil fix, and it mostly worked, but not completely. I bought my latest iMac December 2014 and ordered a brand new MM, assuming that a new one would work better. EXACTLY THE SAME PROBLEM.

I just now tried the reset Prams and cleaning the contacts perfectly. The problem remains exactly the same, a slight jar and it loses connection.

In 5 years they did NOTHING about the problem. Thanks Apple.

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I just tried the paper around the battery fix and NOT the contact-foil fix. It is much less sensitive to mechanical shock, but when it did disconnect from a greater shock, it did not come back into operation until I dropped it and squeezed the battery cover. Obviously in my case it is a mechanical issue. This seems to be a useable fix for me.

Perhaps it is the battery length that is the issue. Are you using Alkaline or Rechargeable batteries?

https://forums.whirlpool.net.au/archive/1702565

Thank you for your help. In the past I was using rechargeable. I got tired of the problem and switched to primary cells, but that did not fix the problem. Mechanical definitely was an issue as the foil in the contact trick did help. This is still an apple design flaw that was not fixed in 5 years - correction, they just came out with a rechargeable mouse to fix that problem. I just now cleaned the contacts and tried the paper trick. It has improved but a strong shock will disconnect it.

Update - the improvement was not great, but with the paper trick after it disconnects it did not reconnect. The lights were doing the double-flash until I tapped the mouse hard on the surface. This is interesting as the LEDs were on so the mouse was getting power but did not reconnect.

I can duplicate the problem. I certain tap disconnects the mouse and it does not reconnect. I can watch the LED continue to flash holding the mouse bottom up and looking at it. I just squeeze the mouse and it instantly reconnects.

I am not going to take it apart as it is under warranty.

jfeder wrote:

I am not going to take it apart as it is under warranty.

If it is still under warranty, then get it replaced. Build a few million of anything, and there will be defects in the manufacture. Not ALL the mice can be behaving this way, even if there are more than a few, or this thread would be much longer than just 15 pages, and Apple support would be saturated.

Just decided to google this issue with my MagicMouse, and there it is. Checked my batteries and I have Kodak Gold, which when replaced with Duracells the mouse seems to be not disconnecting.

I had been having the problem for awhile, never would have thought to check battery fitment. You'd think that would be an exact standard.

There is a visible difference between the two batteries, the Duracell has a bit more of a protrusion on the negative end. The Duracell is also just slightly longer. Doesn't seem like enough to make a difference, but could be.

Yes, there are standards for the batteries within tolerances.

For the interest of everyone here, I put batteries and connected up three different wireless mice on my mac, including the microsoft mouse I bought at Costco for $15.

Every mouse except for the apple mouse took huge hits and abuse with NO disconnect. My magic mouse, with the paper around the battery, cleaned contacts, AND foil, took some slight bump into my silicon wrist-pad, but an energetic bump resulted in a disconnect.

THIS IS A DESIGN ISSUE. don't waste your time hoping that apple fixes their design issue. My five year old MM is identical.

When I feel like wasting the time, I might go back to Apple since it is under warranty, but with the two fixes I mentioned, it works adequately and rarely disconnects unless it gets bumped. Still, it should not disconnect. I found that once I fixed it, when I did a bump I paused in my workflow. I then realized that years with a defective mouse made me adapt my behaviour.

Yes i guess apple can create the iPaper and sell it for 50$

http://www.macobserver.com/tmo/article/os-x-bluetooth-menu-reset-devices

Hi, try to reset the bluetooth module,it works for me

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.