Mac laptops with Apple Silicon use Optimized Battery Charging, a feature designed to extend your Mac’s battery life and battery health by reducing the rate of chemical aging.

Mac laptops use lithium-ion batteries, which, like all rechargeable batteries, become less efficient as they age, but their chemical age depends on more than just time. It is also affected by factors such as temperature history and charging mode.

So Optimize Battery Charging intelligently analyzes your Mac's battery status and its charging mode, and based on this information, the feature may sometimes temporarily reduce the battery's maximum charge to 80%. This happens as needed to ensure the battery is charged to a level best suited for your use, thereby reducing battery wear and slowing its chemical aging.

You can check the battery health of your Mac powered by Apple Silicon by following these simple steps.

1. Click the Apple symbol () in the menu bar at the top of the screen, then click System Settings...
   

   

   
   
2. Select Battery in the sidebar menu.
3. Click the Information (i) button in the Battery Health section.
   

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Check the "Battery Status" results. If it is normal, then your battery health is good. This may be the case even if the included maximum capacity reading no longer reads 100%. This is because the batteries used in Mac laptops are designed toRetains up to 80% of original capacity at maximum cycle times when operating under normal conditions.

However, if your Mac's battery is below 80% of its maximum capacity, it's a sign that it needs service, and you may have experienced a noticeable decrease in battery life.

Every new Mac purchased from Apple comes with a one-year warranty that covers service on defective batteries. If your Mac is out of warranty and the battery has aged poorly, Apple offers battery service for a fee.

Tag: Apple Silicon Guide

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Source: macrumors.com