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mhaii06 Author

Level 1

4 points

how to recalibrate the batter

my battery health is so very low now 89% how to improve this . how to recalibrate the battery

iPhone 11 Pro Max, iOS 14

Posted on Jul 22, 2021 2:29 PM

Top-ranking reply

javaliga

Level 10

119,869 points

Posted on Jul 22, 2021 2:38 PM

All rechargeable batteries are consumable components that become less effective as they chemically age. A normal battery is designed to retain up to 80% of its original capacity at 500 complete charge cycles when operating under normal conditions. The one-year warranty includes service coverage for a defective battery. If it is out of warranty, Apple offers battery service for a charge. For more info, see:

iPhone Battery and Performance - Apple Support

About the battery usage on your iPhone, iPad, and iPod touch - Apple Support

Batteries - Maximizing Performance - Apple

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