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Can iPhone battery health go back to 100?
Depending upon the length of time between when the iPhone was made and when it is activated, your battery capacity may show as slightly less than 100%. A normal battery is designed to retain up to 80% of its original capacity at 500 complete charge cycles when operating under normal conditions.
Is 90 a good battery health?
In short, the closer the percentage is to 100%, the better your iPhone will function. However, at 79% and below, your battery is officially considered degraded. … In general, if your iPhone’s battery health is at 85% or 90%, your phone should still be operating at an optimum level for another six months to a year.
Is 99 battery good for iPhone?
That’s pretty close to normal, actually. Your battery should last about 500 charges cycles. Apple considers that a battery is good until it reaches 80%. If your battery had dropped below 80% before the end of your warranty, Apple would have replaced it.