BatFi App - Manage MacBook battery charge and extend life

While on the iPhone that "Optimized battery charging" feature works quite well and you can save the battery of the device with it, it works rather poorly on the MacBook. In my experience, charging only rarely runs noticeably slower from 80% - mostly it is charged quickly up to 100% despite activated charging optimization. Accordingly, the battery capacity of my MacBook Pro is 91% after less than a year and a half. When I saw that, a solution had to be found immediately - and I found it in the form of the BatFi app. This can be used to force a charging pause between 60% and 90% battery charge. you can take them off macOS 13 Adventure use.

With BatFi you can control the charging of the battery on Apple Silicon MacBooks with macOS Ventura or newer. Sets battery level limits to avoid overcharging and aging the battery.
With BatFi you can control the charging of the battery on Apple Silicon MacBooks with macOS Ventura or newer. Sets battery level limits to avoid overcharging and aging the battery.

Preliminary consideration: Leave the battery charged between 20% and 80%

For optimal battery health and long life while maintaining a high maximum capacity, a battery charge level between 20% and 80% is recommended. So if you use the MacBook often until it gets below 20% battery charge or if you keep charging it to 100%, then this has a negative impact on the battery health. Apparently I didn't treat the battery optimally either, which is why the maximum capacity of my MacBook Pro has already dropped to 91% (or 87,7% according to the BatFi app). Above all, Apple's smart charging management let me down.

I've been using the MacBook Pro 2021 since April 2022. In less than a year and a half I've already lost 9% of the maximum battery capacity. So the "optimized loading" didn't help much.
I've been using the MacBook Pro 2021 since April 2022. In less than a year and a half I've already lost 9% of the maximum battery capacity. So the "optimized loading" didn't help much.

BatFi download with individual pricing

You can find the BatFi download on the Gumroad platform. There you can set an individual price for the purchase. If you enter a zero in the price field as an individual, you will receive the app for free. However, if you want to use BatFi in your company, you should put a few dollars on the table. Information on this can be found on the linked page under the heading "BatFi Pro". 

Once you have entered a price, click on the "I want this!" button. Then you come to the order overview, where you enter your e-mail address and confirm the purchase. An upgrade notice could then appear, but you can click it away with the "Do not upgrade" option. Once that's done, you'll be taken to the download page. Click the "Download" button to download the BatFi .dmg file. Open this to start the installation.

You then need a license key to set up the app. You can find it at the bottom of the download page. It will also be sent to the email address you provided. If you are registered with an account on Gumroad or if you have cookies saved for recognition, you can call up the license key later via the BatFi page and the "Show content" button there.

Manage the MacBook battery with BatFi via the menu bar

After installation, BatFi resides in the macOS menu bar and can therefore be accessed at any time. The icon replaces the system's battery icon, showing not only the current charge level as a percentage, but also a pause sign when charging is paused. You can specify when this happens in the app settings - here you can use 5% increments from 60% to 90% to define the limit. To do this, click on the menu bar icon and then select "Settings...".

Via "Settings..." you get to the BatFi settings. But there is more information that you can discover via the menu bar icon - such as the previous charge cycles, the battery temperature and health. This is even worse than estimated in the macOS settings.
Via "Settings..." you get to the BatFi settings. But there is more information that you can discover via the menu bar icon - such as the previous charge cycles, the battery temperature and health. This is even worse than estimated in the macOS settings.

In the "Charging" tab you can activate and deactivate the automatic control of the battery charge and use the slider below to set when charging should stop. The option to automatically stop charging when the battery runs out is also useful. For me it is activated accordingly. This is definitely useful, especially in the summer. Further down there are a few features that are still in beta. However, the main function is mature and runs stably. Better than the macOS setting anyway.

In the "Charging" tab of the BatFi settings, you set the framework for the core function of the program.
In the "Charging" tab of the BatFi settings, you set the framework for the core function of the program.

Screen gets darker when charging stops: what to do?

It can get a bit annoying if the MacBook display gets darker every time you stop charging. However, this is not a bug in the BatFi app, but a setting for saving power in macOS. If you want to deactivate the automatic dimming of the display in battery mode in order to decide for yourself on the display brightness, proceed as follows:

  1. Click on the in the top left Apple logo ()
  2. Choose from its menu System settings ... from
  3. Click on the menu item in their sidebar Displays an
  4. Click the "More Options..." button
  5. Disables the Switch next to "Dim the display slightly in battery mode" and confirm with the "Done" button

Battery charges beyond set limit when MacBook is off

If you switch off your MacBook, the BatFi app will of course also be closed. If the Apple laptop then remains connected to the power supply, the charging level is no longer regulated and the battery is charged up to 100%. If you want to avoid this, you should disconnect the device from the power supply after switching it off. I use a junction box with a switch to which I connected the MacBook and the external monitor. After turning off the laptop, I also turn off the junction box. If I switch it on again, the MacBook starts automatically - and with it the BatFi app.

In the "General" tab of the BatFi settings, the "Launch at login" should be checked. This means that the app will load when macOS starts. This protects the battery immediately after switching on.
In the “General” tab of the BatFi settings, the “Launch at login” should be checked. This means that the app will load when macOS starts. This protects the battery immediately after switching on.
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In the Sir Apfelot Blog you will find advice, instructions and reviews on Apple products such as the iPhone, iPad, Apple Watch, AirPods, iMac, Mac Pro, Mac Mini and Mac Studio.