My phone sometimes seems to sit at 70–80% forever, then race through the last 20%.
Is the battery actually draining faster near empty, or is the percentage mainly an estimate that gets less reliable with load, temperature and battery age?
Why can the last 20% of a phone battery seem to disappear faster?
- batteries
- phones
- technology
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2 replies
One thing that confused me was that the drain still depends on what the phone is doing. A bright screen, weak signal, or a heavy app can mak...
One thing that confused me was that the drain still depends on what the phone is doing. A bright screen, weak signal, or a heavy app can make the last part go fast enough that it feels like the battery itself changed personality.
So it’s more that the meter is less trustworthy at the edges, plus the phone may be working harder, not that the battery chemistry suddenly becomes rude at 19%?
That’s how I’d put it, yes. The chemistry is still changing gradually, but the percentage display is doing a lot of estimation.