The basic connection process

An Apple mouse connects to your MacBook through Bluetooth, which means your Mac will search for the mouse, the mouse will advertise itself, and once they find each other they'll pair and remember each other for future use. The whole process takes about two minutes and you only have to do it once.

Turn on your Apple mouse by sliding the power switch on the bottom toward the green dot. Then go to the Apple menu in the top-left corner of your screen, select System Settings, and click Bluetooth in the sidebar. Your MacBook will start scanning for nearby devices. When you see your mouse appear in the list — it will show the model name, like "Magic Mouse" or "Magic Trackpad" — click it. Your Mac will say "Connecting" for a few seconds, then show "Connected" next to the mouse name. You're done.

Key Takeaways

  • Your Apple mouse must be powered on before your MacBook can find it, using the switch on the bottom of the device.
  • The pairing happens in System Settings under Bluetooth, where your Mac searches for the mouse and you confirm the connection by clicking its name.
  • Once paired, your mouse will reconnect automatically whenever both devices are powered on and in range, so you will not need to repeat this process.
  • If your mouse does not appear in the Bluetooth list, check that the battery is not dead and that the power switch is fully moved toward the green dot.
  • Older Apple mice may require you to hold down a Bluetooth button on the device itself to make it discoverable, which you can check in the manual that came with your mouse.

What to do if the mouse does not appear in the Bluetooth list

If you've turned on the mouse and waited 10 seconds but it still doesn't show up in System Settings, the battery is usually the problem. Flip the mouse over and look at the battery indicator — on Magic Mouse models, a green light means the battery is good, amber means low, and no light means dead. If the light is amber or off, the mouse won't broadcast a Bluetooth signal strong enough for your Mac to find.

Replace the batteries (most Apple mice use AA or built-in rechargeable batteries depending on the model) and wait 10 seconds after turning the power switch back on. Then go back to System Settings and look again. If the mouse still doesn't appear after a fresh battery, restart your MacBook — sometimes the Bluetooth radio needs a reset to scan properly. After restart, turn on the mouse and check System Settings again.

Why your mouse keeps disconnecting

If your mouse connects at first but then drops the connection, the battery is draining faster than expected. Check the battery indicator again and replace it if needed. A mouse with low battery will pair successfully but lose connection within minutes because it doesn't have enough power to maintain the Bluetooth signal.

Occasionally, interference from other wireless devices — like a Wi-Fi router, microwave, or another Bluetooth device very close by — can cause drops. Move your mouse and MacBook away from other electronics and try again. If disconnections happen only in one room, the interference is probably coming from something in that space. If the problem follows you everywhere, the battery is the more likely cause.

How to forget and re-pair your mouse

If your mouse is paired but behaving strangely — clicking when you don't touch it, moving erratically, or refusing to reconnect — you can erase the pairing and start fresh. Go to System Settings, click Bluetooth, find your mouse in the list, and click the X or Remove button next to it. Your Mac will forget the mouse entirely.

Turn off your mouse, wait 5 seconds, then turn it back on. Go to System Settings and Bluetooth again. Your mouse should appear in the list as if it were new. Click it to pair. This clears out any corrupted connection data and usually fixes erratic behavior. After re-pairing, your mouse should work normally again.

Checking battery life and charging

Apple mice with rechargeable batteries show their charge level in System Settings. Go to System Settings, click Bluetooth, and look for your mouse in the list. Next to the name, you'll see a percentage — that's your current battery level. If it's below 20 percent, charge the mouse soon to avoid unexpected disconnections.

Charging method depends on your mouse model. Older Magic Mouse models charge through a Lightning cable plugged into the bottom of the device — you can use it while charging, though it's awkward. Newer models may use USB-C. Check the manual that came with your mouse or look at the charging port on the bottom to see which cable you need. Charge for at least two hours before using the mouse again.

Pairing with multiple MacBooks

One Apple mouse can be paired to multiple MacBooks, but it can only connect to one at a time. When you turn on the mouse near a different MacBook, it will automatically reconnect to whichever device it was last paired with. If you want to use it with a different Mac, you have to manually switch it.

Go to System Settings on the new MacBook, click Bluetooth, and click your mouse in the list. Your Mac will connect to it, and the mouse will disconnect from the previous device. The next time you turn on the mouse near the first MacBook, it will reconnect there instead. This switching happens automatically — you don't need to unpair from one device before pairing with another.

Frequently Asked Questions

Can I use a non-Apple mouse with my MacBook?

Yes. Any Bluetooth mouse will pair with a MacBook using the same process — go to System Settings, click Bluetooth, and click the mouse when it appears. Non-Apple mice work just as well as Apple mice, though some may have extra buttons or features that require additional software to function.

Why does my mouse pair but then when ready disconnect?

The battery is almost certainly dead or dying. Check the battery indicator on the bottom of the mouse. If it's amber or off, replace the batteries when ready. Even if the indicator looks green, try a fresh battery anyway — the indicator can be inaccurate on older devices.

Do I need to pair my mouse every time I turn on my MacBook?

No. Once paired, your mouse will reconnect automatically whenever you turn it on and it's in range of your MacBook. You only pair once, unless you forget the device in System Settings or pair it with a different computer.

What if I lost the manual and don't know which battery my mouse uses?

Flip the mouse over and look at the battery compartment — the size and shape of the slot will tell you what battery fits. AA and AAA batteries are standard sizes you can buy anywhere. If your mouse has a built-in rechargeable battery with no compartment, charge it using the Lightning or USB-C cable that came with it.

Can I use my mouse while it's charging?

It depends on the model. Older Magic Mouse models with Lightning charging ports can be used while plugged in, but the cable is short and awkward. Newer models may not work while charging. Check your manual or try it — if the mouse doesn't respond while plugged in, wait until it's fully charged before using it.