Battery health
Why my battery health is decreasing?? Its come to 97% in just 1.5 months..
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Batteries are consumables; they wear out with use. The primary measure of use is discharge-charge cycles. The battery is expected to maintain above 80% capacity for 500 full charge cycles. That works out to around 25 full charge cycles for every 1% drop, although it isn’t linear and isn’t exact, either. Don’t worry about it now; if it gets close to 80% while the phone is still in warranty contact Apple Support for a replacement.