Knowing how many charge cycles your battery has and how many are left can help you determine when a battery replacement is required. In this way, it might take several days to complete a cycle.īatteries have a limited amount of charge cycles before their performance is expected to diminish. Once the cycle count is reached, a replacement battery is recommended to maintain performance. You can use your battery after it reaches its maximum cycle count, but you might 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 a single charge.įor example, you could use half of your notebook's charge in one day, and then recharge it fully. When you use your Mac notebook, its battery goes through charge cycles.
