Hold the Option key and click the Apple menu , then choose System Information.Your battery is designed to retain up to 80% of its original charge capacity at its maximum cycle count. For best performance, replace your battery when the maximum cycle count has been reached.įollow these steps to access information about your Mac laptop battery, including its cycle count: Knowing how many charge cycles your battery has, and how many are left, can help you determine when to replace the battery. This lets your Mac learn your charging routine and wait to charge past 80% battery until you need to use it. In macOS Catalina 10.5.5 or later, you can turn on optimised battery charging to help reduce battery ageing. In this example, it may take several days to complete a cycle.īatteries have a limited number of charge cycles before their performance is expected to diminish. Once the cycle count has been reached, a replacement battery is recommended to maintain performance. You can use your battery after it has reached its maximum cycle count, but you may notice a reduction in your battery life. If you did the same thing the next day, it would count as one charge cycle, not two. A charge cycle happens when you use all of the battery’s power – but that doesn’t necessarily mean in a single charge.įor example, you could use half of your laptop’s charge in one day, and then recharge it fully. When you use your Mac laptop, its battery goes through charge cycles.
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