![check mac air battery check mac air battery](https://www.howtogeek.com/wp-content/uploads/2018/05/3power-650x450.png)
Multiply the “Full Charge Capacity” by the “Voltage,” and then divide that number by one million. Follow the steps here to reach the “Battery Information” section in System Information. Extra Credit Math Time!įor those of you who want to monitor battery life a little more proactively-good news! You can do that with just a little math. However, if your MacBook overheats quickly while performing small everyday tasks (and especially if it also experiences any of the above symptoms), the culprit may be a faulty battery.
#Check mac air battery software#
Any number of hardware or software issues can cause your MacBook to overheat.
![check mac air battery check mac air battery](http://cdn.osxdaily.com/wp-content/uploads/2019/03/airpods-battery-charging.jpg)
Well, okay, it’s a little more complicated than that. If you can’t handle the heat-get a new battery in your MacBook. Be sure to test your laptop while it’s plugged in order to determine if the shutdowns are purely a battery issue. A MacBook can also turn itself off if it overheats or encounters certain errors. If this happens often-and shortly after you charge it-that’s a clear sign that it’s time to replace the battery. If your MacBook turns off when you don’t want it to, it could be because the battery is out of juice.
![check mac air battery check mac air battery](https://valkyrie.cdn.ifixit.com/media/2019/07/16145655/mac-battery-health.png)
It’s not just iPhones that unexpectedly shut down-all of our battery-powered devices can unexpectedly shut off when the battery lives past its expected shelf life. For those that prefer a milder MacBook experience, a good rule of thumb is to replace the battery when its run-time is down to 25 percent of the brand new run-time. How low you want to run your battery is a really personal preference-and some users like to keep things spicy. Are you now only able to while away a few minutes before your MacBook demands to be charged? Sounds like it could be time for a new battery. Remember when you first unplugged your new MacBook? Who could forget that sweet feeling of freedom as you whiled away the hours, anywhere you pleased. If the number of charge cycles used is close to the maximum number of charge cycles for your model, you should start thinking about replacing the battery. Compare that to the maximum cycle count for your model, listed on Apple’s instruction page. Check out Apple’s instructions here. The Power section of your Mac’s System Information menu lists how many charge cycles your battery has been through. With a little digging, you can find some more details about your battery’s health. With either System Information or coconutBattery, you can quickly see how much capacity it’s lost and whether it needs to be replaced.P.S. If you’ve got an older MacBook, the battery almost certainly holds less charge now than it did when it was new. Losing 15% capacity over almost three years isn’t too bad at all. When it was new, it had a capacity of 8755 mAh.
#Check mac air battery full#
When you run the app, you’ll see something like the screenshot below.Īs well as the cycle count, this app shows us that the battery now has a Full Charge Capacity of 7098 mAh. Next, select Battery Health at the bottom. For macOS Big Sur Click the Apple icon at the upper left corner in the menu bar.
![check mac air battery check mac air battery](http://www.macyourself.com/wp-content/uploads/2011/01/012311-batteryhealth-screen1.jpg)
So I have shown them separately for each.
#Check mac air battery download#
If you want a little bit more info that’s easier to understand, download the free app coconutBattery. Note: The steps to check battery health works differently depending upon the OS your MacBook is running. For example, it tells you your battery’s current maximum capacity but not it’s original capacity. System Information has most of the data you need to assess your battery’s health, but it’s not very well laid out and could provide a bit more information. If there is a problem with your battery, the “Condition” entry (which shows Normal in our example) will display something like “Service Battery.” Get a Bit More Information with coconutBattery The battery doesn’t need to be replaced yet, but it probably will need to be done later this year. The MacBook in our example has a cycle count of 695.