Once the app is running, set the value to the maximum you desire. This is required for AlDente to be able to write the SMC value as root. When you start AlDente for the first time, it will ask you to install its helper tool. To work around this, right-click on the application and click Open: Upon opening, you'll probably get a message like AlDente cannot be opened because the developer cannot be verified. Then unzip the archive and move AlDente.app to your Applications folder. Head over to AlDente's Github Page and download the latest release. Most likely it's just using the same feature OS X is using, just more explicitly. The tool itself writes this value to the SMC of your MacBook. Luckily there's a free tool that allows you to take control over the maximum charge level.ĪlDente gives you the possibility to set a maximum charge level for your MacBook. Lenovo and Tesla are both offering such a feature out of the box, Apple doesn't. I wanted to control the maximum charge level myself before the battery was degraded. Since my battery health is still high, it didn't reduce the maximum charge even after being plugged in for multiple days. In my tests, it drained the battery a bit after being plugged in for a while and then recharged it back to 100%. This happens as needed to ensure that your battery charges to a level that's optimized for your usage-reducing wear on the battery, and slowing its chemical aging.īut what does that mean exactly? The description in the System Preferences is a bit clearer:Īccording to this message, OS X will start reducing the maximum charge of the battery when it ages, to extend its lifespan. Based on the measurements that it collects, battery health management may reduce your battery's maximum charge when in this mode. The feature does this by monitoring your battery's temperature history and its charging patterns. Apple describes the feature as: The battery health management feature in macOS 10.15.5 is designed to improve your battery's lifespan by reducing the rate at which it chemically ages. It is found under System Preferences > Energy Saver. In Mac OS Catalina 10.15.5, Apple has introduced a new feature called Battery Health. To avoid this from happening again, I started looking for a way to control the charging behavior of my MacBook. To replace the swollen battery, the entire Topcase had to be replaced. Upon inspection with a ruler, I noticed that the keyboard was curved because the battery had swollen. I first noticed that there's a problem when my trackpad wasn't clicking properly anymore. For Lithium-Ion batteries, it's not healthy to remain charged at 100% all the time. This means my MacBook is constantly connected to the charger. Since the beginning of the corona pandemic, I work from home. If the battery lasts only one year longer, it was worth it.4 min The scary sign of a buldging macbook battery The price for the Pro version is just over 11 euros for one year, for a lifetime license at just under 24 euros. So you get full control over the charge level of your battery. In addition, it is now possible to set directly via the menu that the battery should be charged to 100% (because you want to give a lecture), or that the battery should be drained. This should also be better for the battery. So it will be charged once instead of 10 times by one percent. you allow the battery to drop to 60%, only then the missing 10 percentage points are recharged. With the Sailing function you can define a window from 60% to 70%. Then the battery would also be recharged at 69% charge. Let’s assume you want to keep the battery charge at 70%. This allows you to define a charging window, so to speak. The Pro version, on the other hand, now brings a Sailing function. The free version, which is still available, can limit the battery level. The Pro version now allows you to set many small and precise settings. Especially for the home office, where the Mac is probably mostly connected to the mains, you can set the battery level to significantly less than 100%, which stresses the battery less and thus also wears it out less. It allows you to configure exactly how the battery of your MacBook should be charged when it is connected to the power supply. We already introduced you to this little tool. The battery manager AlDente for MacBooks is now available in a Pro variant.
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