4 ways to limit MacBook charging to 80% for battery health


Many people prefer to keep their MacBook plugged in all the time. However, this negatively affects battery life. While it’s normal for the MacBook’s battery to deteriorate, you can extend its life by limiting the charge percentage in macOS. In this article, let’s look at different methods to limit or stop MacBook charge to 80 percent or another level.

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Stop or limit MacBook charging to 80 percent

Like any laptop, MacBooks have lithium-ion batteries that chemically deteriorate over time. The 20-80 percent is an ideal range for these batteries. And that’s why you should avoid charging it more than 80 percent or discharging it to less than 20 percent.

Charging the battery to its maximum capacity causes chemical wear from high voltage and temperature. Other factors, such as battery cycles, also determine battery degradation.

Why Limit Battery Charge on MacBook?

As mentioned before, charging or discharging to the limit loads and discharges the Li-ion battery. So if you charge it from 80 to 100, it will age faster. It reduces the ability to hold charge and can even swell in the long run.

So if you prefer to keep the MacBook plugged in at all times for convenience, a better option is to limit the charge to 65 to 80 percent using the methods below.

Method 1- Restrict MacBook Charging with AlDente

AlDente is a popular application that limits the maximum load level on Mac. These third-party apps can do this by changing the “Battery Charge Level Max” (BCLM) parameter in the SMC. Here’s how to use AlDente on Mac:

1. Download al dente via the link below.

2. Open the dmg file and drag it into Applications.

3. Click the app icon in Applications. You can also open it from the Launchpad.

4. Tap Open when the message “Are you sure you want to open it?” warning appears.

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