![]() If you’re concerned about if or how fast your Mac or mobile device is charging, you can see whether a power adapter is connected and the wattage at which power is transferring. (Remember that Apple’s 1-year device warranty covers a battery that drops below 80 percent maximum capacity in that period, and AppleCare+ during any point while it remains in effect for Macs, iPhones, and iPads.) ![]() That means it’ll be certainly be due for a warranty replacement in a few months. Delivered in December 2020, at 8 months, it was already down to 92 percent capacity at 63 cycles at 10 months, right now, and 74 cycles, it can only hold 85 percent. 3 After some legal issues, it had reached version 2.0 on December 9, 2005. Connect your iOS device via USB to your Mac. This revealed to me that my M1 MacBook Air battery has taken a real hit, according to the History view in the app. coconutBattery was created in 2005 by Christoph Sinai, then a 22-year-old student in Germany. (Cycles measure 100 percent charge, so discharging 50 percent and recharging to full is a half cycle.) With coconutBattery running or every time you launch it, the app records statistics for the device’s age (based on a date Apple encodes in it), the current maximum percentage of design capacity (as Health), and the number of cycles it’s been charged. But I recommend taking a look at the design capacity percentage regularly, too. They might help decide whether you should pack a USB battery pack, for instance, or charge for longer. Many of these statistics are useful to look at while anticipating going mobile for tens of minutes to several hours. CoconutBattery can also tell you a lot about the battery on an iPhone or iPad connected via USB or Wi-Fi.
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