Why does magic mouse quits working constantly?

I have two Magic Mouse(s) and both worked fine from day one - early last year, and both now act up constantly with the same symptoms. I am among those who believe it has something to do with Lion. When I boot up, they don't get recognized and when I go to Mouse and search for bluetooth devices - sometimes they are found and most of the time they are not. I can reboot and sometimes get the mouse but often do not.
I know about adding the paper to help cushion the batteries, hasn't helped. I have the Advanced setting to wake computer with mouse - doesn't help. I saw some reference to booting with a control option and deleting some setting but can't find out exactly what that is all about. Love using this mouse, especially swiping, and want to make it work.
Right now I have one of those huge "ergonomic" bricks in my palm and can't stand it! Please let there be an answer.
Thanks

I think I have solved my own problem. My wife's Mac is just on the other side of the wall in the adjacent room. She came in to my room to tell me her cursor was moving all over the screen without her control. Guess what? My mouse was paired to her computer and while I was moving mine around to see if it would work, it was moving around on her screen! Not sure exactly how that happened but I went in and removed the mouse from her's and now my computer pairs with it as it is supposed to. Case closed for now.

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Why does magic mouse not work with duracel batteries

I bought an iMac a few months ago.
Now the batteries from the magic mouse are empty and I had to buy new ones.
Only they don't work. I had to pick cheap batteries from others devices.
Can anyone tell me which brand wil work?
Thanks,
Bernadette

I bought my iMac 2 years ago, it came with a Magic Mouse, within several months I started having the same battery issues. I looked here, and on the Internet to find out if the problem was already known about, but found only people guessing wrongly at what the problem is. I do hope Apple has fixed this, but unfortunately many of got stuck with a junk Magic Mouse. As an Engineer with 25+ years of experience in the design of electrical contacts & connectors which includes over 2 dozen patents ... believe me when I say the problem here is that the recessed positive contacts (at the on/off switch end) are too deeply recessed to make contact with the industry allowed variation in AA batteries. Those contacts are too deeply recessed because the plastic is too thick (in the hole that forms the recess) and the metal contacts are not tightly up against the backside of that plastic wall, in fact it looks like they are installed with a gap and/or can deform/bend away further opening that gap even larger. As mentioned above many industry AA battery standards define the positive button contact height as being 1.0mm or larger ... however that plastic wall is about 1mm thick, add the gap for the metal contacts and you have no electrical contact no matter how much contact spring force there is at the negative end. Unfortunately, there is no simple good fix for the average person to perform, the recessed contacts can't be accessed to bend them to remove that gap and the pastic is too thick anyway .. leaving us with a "duct tape" fix, like wadding some tin foil into that positive terminal recess and swearing when it falls out during battery changes. A nice elegent fix, would involve disassembling the mouse, machining plastic, backing up those terminals... absurd right?... would be easier if Apple sent us a new mouse that works.
This problem has nothing to do with overall battery length, battery diameter, or inadequate spring contact force from the negative mouse contacts. Also I doubt the brand or type of battery is the issue for anyone, the positive button heights vary among brands/types, but probably are 1.0mm or larger per the industry specs, Apple just didn't design this mouse to that industry spec, or they did not control their manufacturing quality to yield what they designed. This iMac was my FIRST Apple purchase after decades of avoiding and dismissing Apple, ironically they won me over with their progress and high quality products ... I'm rather disappointed.

Why does Magic Mouse use much more battery power than the keyboard?

I have the Bluetooth versions of the keyboard and the Magic Mouse. I use the same rechargeable batteries in each. Yet the mouse has now come to the end of a THIRD set of AAs, while the keyboard still has 60% of its first set.
Why? They are both constantly in use, so why does the Mouse drain batteries so much faster than the keyboard? Viz: the mouse about once a week (two, max), while at this rate, it will be another month or more before the keyboard drains.

Actually I don't! I consider myself a 'power user' in that I will always use the keyboard first, and I learn keyboard shortcuts for nearly everything I do regularly.
I would guess my use is 50:50 at worst?

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<Re-Titled By Host>

I have three MM. One just does not work well. The other two are fine with the 2013 Mac Pro. Sometimes you have to clean the optical lens and sometimes they just don't work on any machine.

Magic Mouse quits working over night

I have a new i7 iMac.
In the last week I have noticed that in the morning the Magic Mouse is not connected to the iMac.
The wireless keyboard does work though.
I have put in new batteries in the mouse so I know that is not the problem. I have tried flipping the switch on the bottom of the mouse and that does not do anything. I can see the green light flash on the mouse so I know it is doing something.
I have gone to the mouse system preferences and it says no mouse connected.
The only way to get the iMac to connect to the mouse is a full reboot.
Anyone else seen this? Anyone have any ideas how to fix this?
Also, is there a keyboard shortcut to tell the iMac to reboot gracefully. Right now I have to push the power button but I would rather let the OS gracefully shut things down.
Thanks

VintageSlots wrote:
Also, is there a keyboard shortcut to tell the iMac to reboot gracefully. Right now I have to push the power button but I would rather let the OS gracefully shut things down.
FUNCTION CONTROL F2 will move the focus to the Apple menu and then you use the direction keys to Shutdown or Restart the iMac.

Why does my mouse stop working?

I'm having issues with my Magic Mouse. It will suddenly stop working. It won't display that the connection was lost until I turn the mouse off and turn it back on. The arrow is also moving very sluggish across the screen. I just replaced the batteries and it is still doing this.

Yea you were unfortunatly correct.
Soon after the reset I got all the same issues.Often my mouse and keyboard disconnects, Safari lags when scrolling, mouse lags and keyboard and mouse sometimes become unresponsive.
Hate to say it, but what happened to Apple since they cannot even get the mouse and keyboard to work properly?!
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I've got an Apple Magic Mouse that is less than one year old and it keeps disconnecting from my Mac Mini. It just started doing it. I've put in fresh batteries and restarted the computer. I've got all the latest operating system software. Nothing is out of date. Every couple of minutes it just randomlly disconnects then reconnects and so on, over and over again. It's only about 2 feet away from my Mac Mini.
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I thank you for your help, Ascendi, but I have no idea what you're saying. I'm guessing I stand alone, because others do understand. What I got from it was that the batteries don't fit snuggly, and to shove aluminum foil... somewhere. I'm don't have a PhD in battery terminal dimensions and their terminonolgy. But I do appreciate that you helped.
David / Flashkube2... EXACTLY! After years and years with my wonderful white Magic Mouse, just today the exact same thing started happening, only I was losing connection every 20 seconds. Half the time, I'd get it back. I feared it was a Bluetooth error, or a hacker was "stealing my juice" So I got online here, read this stuff, wiggled my batteries around (for years and years, I've only used Duracel), and for the last 10 minutes, I have kept connection with Mr. Mouse and Mr. Mac. Keep your fingers crossed!
So if this problem arises again, I just stuff aluminum foil in there? (I'll be a wee bit neater than "stuff"). Speak "positive terminal" and "negative terminal" and "top of the batteries" to me, because "depth of the recess" and "vernier caliper" are Chinese to me. Does "battery recess" mean how the two batteries sit in its casing?
Maybe I just didn't have enough coffee this morning. I'm not ususally shtooo-pid. (don't go there!)

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Hi Moonbyrd,
Welcome to the Support Communities!
The articles below may be able to help you with this.
Click on the links to see more details and screenshots.
Troubleshooting wireless mouse and keyboard issues
http://support.apple.com/kb/TS3048?viewlocale=en_US
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/ht3964
About NVRAM and PRAM
http://support.apple.com/kb/HT1379
Cheers,
- Judy

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Why does magic mouse quits working constantly?

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