![]() Shorter life means that you charge your MBA up completely, then use it off charger until it runs completely down each day. There's a couple of years before the real-time reports would be available. Then, you have real time - no one at the consumer level has had one of Apple's new batteries for 5 years yet. It's reasonable to say, then, that instead of about 3 years on the older batteries, you should _expect_ at least 5 years. I think the longer time possible really complicates how to decide what that really means, because age/heat/etc may not mean 3 times longer, but something less. So - in simple numbers, that's something like 3 times as long. The number that Apple uses NOW is 1,000 full charge cycles. Using a rough guess of 100 full charge cycles a year, then it's easy to see 2 or 3 years as a potential expected battery life (something like your experience) ![]() Apple significantly changed the batteries in all their laptops 2 to 2 years ago.įirst, you will notice that Apple before would use the figure of 300 full charge cycles, as an estimate of the life of the battery.
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