TLDW; No

Basically the video is testing phones with varying charging speeds and how much battery degrades after 500 charging cycles. Also, the affects on performance after battery degradation at 5:37

Timestamps of some tests:

  • Test results for different charging speeds at 3:06
  • Storing batteries at 1%, 50%, 100% at 3:43
  • Battery performance at 4:42

After 6 mins he talks about why the tests took 2yrs and how they did it 3 times.

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[–] 2 points 1 year ago (1 child)

This is literally what a bunch of companies already do. In a Samsung flagship, if you measure the "full" unloaded battery voltage on day 1 vs day 1000 it will be about 0.2v higher after three years. This is a reserve capacity which they slowly give back over time to keep the perception of "day 1 capacity" through the first 5-10% of batter degradation.

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