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I tried turning it on, and literally nothing changed. All the animations/parallax etc were all still available and drained battery just as quick. Odd.
 
It would be great if enabling it at 10% would give 3 hours of use instead of 1, but if it's 3 more hours at 100% then I'm not excited. I would prefer to charge it during the day than having performance issues.
When I watched one of the sessions today someone stated that the 3+ at 100%
 
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