You can find this tool by clicking on Finder in the Mac dock, then choosing Go > Utilities, then choosing Activity Monitor. However, there's no way to find the actual current temperature using the I had a chance today to quickly check a demo Air 2018 unit that had over 180 charge cycles already and its battery had still a bit over 4300mAh, so it being that high after that many charge cycles suggests that battery in Macbook's should be like ones used in iPhones and iPads which are over their nominal capacity when device is new and it stays there for some time. Heat is the real battery killer. Cool the laptop when you can. This is the saving grace of the M1, it saves the battery in two ways: Its efficiency allows longer battery life, and its high performance per watt means low power requirements (less waste heat generated, longer battery life). As the titles says I bought this MacBook Air M1 around 24 November and I noticed after a couple of days of exploration that the battery health was 96% health. Didn't pay too much attention. But yesterday as I was watching a iPhone SE video waring to check immediately the battery health and that if it wasn't at 100% to complain to Apple. You can quickly launch Activity Monitor from Spotlight search ( Command + Space ). In Activity Monitor, click on Energy to view running apps and their energy impact. By default, the apps are arranged from highest to lowest energy impact. The higher an app's energy impact, the higher its battery consumption. The easiest way to check your battery cycle count is through the System Information. To start, click the Apple Icon in the upper left corner of your screen and select About this Mac. You’ll be greeted with your System Overview. Click on System Report to get to the battery information. You’ll be greeted with a Window displaying all of the The menu that opens will say "battery is charged" and underneath it - "Power source: Power adaptor" which shows it's not using the battery to power the mac. Then, unplug your charger and look at it and it will say "Power source: Battery". Your battery cycles won't keep adding up if you keep it plugged in. Click the Apple symbol ( ) in the far-left corner of the menu bar at the top of the screen, then click System Preferences. Select the Battery preference pane. Select Battery in the sidebar Check Your Battery Health Too . You can check your MacBook battery health under Settings > Battery. At the top of the menu, you'll see a summary of your battery health, with a small information "i" button next to it. Click on the "i" to see more detail including the maximum capacity in percentage. CnWm.

how to check battery health on macbook air 2015