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Apple says Low Power Mode helps the iPhone last longer. But how much longer? After 80 hours of active testing, that's we aim to find out in this video.

TEST NOTES:
- Screens were calibrated to 200 nits with auto-brightness turned off, except for in the second test where auto-brightness was turned on.
- Speakers calibrated to the same decibel count.
- Tested within equal distance of a mini cell tower.
- Tested in a temperature controlled environment.
- It's the same iPhone in all tests, with a battery health of 100%.

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Low Power Mode vs. Normal Power Mode Battery Test
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