![]() So, the battery not only gives you more use (battery time), it also lasts longer (battery life) And, you can use your MBA for quite a while longer, per charge, than you could ever do with your old iBook G4. 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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