Alternatively, in the Apple menu, go to About This Mac -> System Information, then access the Hardware section in the left pane -> select Power. To assess your MacBook Pro or MacBook Air battery condition, hold down the Alt (Option) key and click the battery icon in the menu bar. How to View MacBook Pro or MacBook Air Battery Condition? For example, if you use 25% of your battery power then charge it to 100% four times, it will equal one battery cycle (25+25+25+25=100). In fact, it may take a few days to complete a cycle. Using a half of the charge then completely recharging the battery wouldn’t equal a single charge cycle. However, this doesn’t equal one full battery charge. One charge cycle equals spending all of the battery’s power.

Users should monitor the battery status and serviceability, or they risk to end up with a non-working laptop. The more intense battery use is, the faster it wears out. The manufacturer sets the limit on Mac’s battery life span. MacBook Battery Condition: What is a Charge Cycle?

macOS Sierra constantly monitors the battery condition to help users evaluate their laptop’s battery health. Because of multiple recharge cycles, laptop batteries gradually lose their operating capacity. In the event your Mac’s battery rapidly discharges, or your laptop refuses to work without a power source, it’s time to get alerted. Keeping track of the notebook battery cycles is crucial for knowing when to replace it. Owners of MacBook Air and MacBook Pro should pay close attention to their laptop’s battery health.

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