> Your reaction is a non-sequitur to the author's point; they were being sassy by saying if you want optimal battery life, plug in and let the device manage voltage/battery health forever.
I don't think that's a non sequitur; the author is wrong. Leaving the device plugged in won't give you optimal battery life, it will at best simply avoid it mattering. The firmware can reserve room and say it's at 100% when it's physically 90%, but that's still going to degrade the cells faster than 80% or 60%.
The fact is we (you and I) don't know what the Android phone's behavior is when plugged in 24/7 (note the author is a community mod for an Android-compatible OS). The UI can/does lie, and it's probably different from model to model, so at best we can say we're not sure if he's right or not. Technically using DC power instead of battery is best for battery health (dis/charge cycles are worse for battery health) but like I said before, it's just a snarky suggestion on his part.
I don't think that's a non sequitur; the author is wrong. Leaving the device plugged in won't give you optimal battery life, it will at best simply avoid it mattering. The firmware can reserve room and say it's at 100% when it's physically 90%, but that's still going to degrade the cells faster than 80% or 60%.