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For the past several days, my magic mouse keeps losing connection to my MacBook Pro, and most of the time it won't even connect at all. I thought the batteries needed changing at first, but that didn't help either. I keep going into my Bluetooth settings to try and manually connect it but, again, it didn't work. Can anyone suggest ways to try to fix this problem?
Magic Mouse-OTHER, Mac OS X (10.7.4)
I had this problem too, turns out a slight design flaw with the mouse is that smaller batteries come loose and power is lost, so the bluetooth dies. You'll probably find that it loses connection when you're moving it around quite a lot, in particular, when you lift it up off of the desk and put it back down again. See, different brands of battery tend to be ever so slightly varied in size, and smaller ones tend to be more 'loose' in the mouse and an be shaken loose when moving the mouse around.
The best solution (the one which worked for me) is to grab a set of Apple's own rechargeable batteries from their store as they are just the right size to fit in the mouse without ever being shaken loose.
If you can't do this, some people find that wedging a bunch of paper between the two batteries and between the batteries and the mouse door can help keep them in place.
I hope this solves your problem as it has mine. 🙂
Of all the suggestions so far, what's worked for me is the suggestion to put a thin washer between the negative end of the battery and the spring-loaded connection.
Elegant solution with great instructions!
So frustrating! Why didn't I google this a week ago! It was the batteries! One folded post-it and Im happy 🙂 Thank you. The measured paper folding did make me lol 😁
Tks hwv.5934, I did what you suggested and now it works perfectly, and also, great explanation on how to do it 🙂!! Tks
Worked for me too! Thanks
I took some cello tape and wrapped it around each battery (about 4 times) then replaced the batteries. It seems to have fixed the problem.
Brilliant! A folded piece of paper just saved me 80 euros I though I had to spend on a new mouse. Thank you
Fold the paper as instructed...brilliant...works great.
Thank you! This is the answer I was looking for!
Cant help but believe that this battery size thing is load of Sh*t!!!
God sent, my friend! Thank you for sharing with good details. Solved a big pest of a problem. 😉
thanks SO much for the paperairplane solution. it is a perfect solution to a design flaw.
Great! I would never ever have consdired this to be a "mechanical" issue. Thanks so much! 🙂
Had the same problem, THe solution of the paper installation worked wonders for me as well.
THanx for the solution 
sbeddoesdesign
Still getting these issues 😟 Same problems, different operating system 😟
Magic Mouse keeps losing connection
