Why does my iPhone power off when the battery is down to 30%?
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What causes iPhone low battery crashes? Is there a software fix?
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How to perform hard / cold reboot of iPhone or iPad?
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No low battery popup notification in 16.04
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How can I make iPhone silent for a specific amount of time?
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How can I prevent iTunes from auto starting when I plug in an iOS device?
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Why is it better for an iPhone’s battery to NOT close down apps?
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What damage will powering down instead of shutting down do?
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Why are my games slower on battery power, even with the power plan set to High Performance?
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Is unplugging the power from a PC in standby or in normal mode bad for it?
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Low Battery Alert for Mac OS X El Capitan
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iPhone 5S suddenly turns off at 30-40% of battery life
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Android: prevent display from turning off
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Force MacBook to drain the battery while connected to charger
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Determine accurate iPhone battery level
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How do I reset iPhone if hard reset (power + home) won't work
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How can I disable the low battery alarm?
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Battery percentage on iPod touch 5G iOS 8