Magic Mouse keeps disconnecting from bluetooth

I've had this random disconnect problem with my less than 2 year old magic mouse for a few months. The only fix I've found was to take the battery cover off and leave it off. Somebody else suggested this (in another blog) and it's worked for me.

So far, that's working for me.

I have been demented with constant disconnects and so have been keeping a wired mouse on the desk, always ready to swap. Different types of batteries and cleaning terminals did not provide a solution.

– Those recessed positive terminals seem incredibly stupid. How did Apple let them pass? –

So from now I'll use the expensive Mouse without its bottom plate.

Try it with a blob of aluminium foil in each recessed +ve socket. I've found that drop outs pretty much disappeared when I started to do that. I suspect the door keeps some dirt out of the sensor area.

Nick

Adding a foil amazingly improved the situation, can't believe it. The disconnect problem was not there in the first 6 months with the new iMac but became more and more often in the last 3 months, especially when the mouse is lifted. Today, following the advice of foil solution, I can say it is gone.

I find the problem lies with the battery size itself.

Although it is AA batteries the batteries itself comes in slightly diff sizes. Choosing the slightly bigger ones seems to work better. I don't recommend adding foil as that will stretch the insides more and cause further disconnection in the future.

Energizer recharge brand battery size seems to work perfectly.

Same for me - I found that Energizer batteries were just that fraction longer than Duracell or the Sony batteries I had been using - works fine now for keyboard and mouse.

Yup, I am now on my third mouse and pretty annoyed that the last two must have been fine!

The tin-foil fixed it, easy.

Just fold some up so its a couple of mm thick, then place under the negative side of the batteries in order to make the batteries a tighter squeeze.

Can drop it, wobble it, slam it and thump it and it never disconnects... previously if I move the thing too quickly it would disconnect.

Human win!

Hi,

just want to let you know, that the disconnect problem have been totally resolved for me. The real root cause was another non-Apple bluetooth device, namely a Logitec Bluetooth keyboard. After this was replace with a non-bluetooth wireless keyboard, the mouse was absolutely stable.

My take is, that the Magic mouse simply creates a lot of bluetooth traffic when you move it fast. This conflicts with other bluetooth signals and crashs the connection between the Magic Mouse and the computer. So it looks like it is correlated to mechanical movement of the mouse - but it is not! At least it was definitely not in my case.

Therefore, I recommend that everybody who has disconnection problems with the Magic mouse even after the mouse was replaced, should try to eliminate all other Bluetooth traffic connected to the same or nearby computers.

Stefan

I have been having this problem for about a month now, and reading the thread I am thinking this goes back to the cheap AA batteries I bought a month ago. Maybe they are shorter and don't connect well. Sometimes, my mouse will disconnect on/off up tp 5 successive times in a row. I want to throw it when it happens.

I don't believe this is to a bluetooth conflict. This has just started happening, something had changed recently to cause this. I was hoping that it wasn't something breaking down in my Mac as I already have one bad riser, and montherboard could be slowly going.

Can't believe how widespread this is and the posts have been since 2009, and still here we are.

Try this:

System Preferences----Bluetooth----Your Magic mouse---Gear icon---Show more info---add favorite

it looks like this solves the problem:)

I can confirm that removing the battery cover also works for me.

mpayne - this keeps going because this is such a wonderful mouse -- until you hit the disconnect issue.

I don't think it's a Bluetooth issue either. Every time this happened I had replaced a cheaper battery with the best kind ( at least claims to be) such as the copper top ones, and it solves the problem I think it is a connectivity issue within the battery chamber.

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!

Aye, there's the rub. What is a 'good quality battery'? Is it the chemicals - no. Is it the alloy of the metal on the ends - maybe. Is it the length of the tip of the battery, which leads to a different amount of retention force, and modification of the interference from the plastic battery holder case -- most likely.