On 3/9/21, Jan Stary <h...@stare.cz> wrote:
> Why would you want to stop charging before being 100% charged?
>
This email wasn't CC'd to the mailing list, right?
Say you keep the battery plugged in overnight for charging. It charges
to 100%, and then stays so for 5 hours till you wake up in the morning.
It might not sound that horrifying right now, but wait till you hear the
next part.
According to a research, it has been found that, at the extremes of the
battery's charge capacity, it stays at _high tension_, causing it to
degrade quicker. The nearer the battery's charge is to an extreme, the
more tension it is under, and the faster shall it degrade.
Imagine it like food. If somebody makes you eat so much that your
stomach is 100% full, and then ensures that it remains 100% full for 5
hours, how would you feel? (For a comparison, we mostly feel comfortable
when our stomach is ~50% full, and we feel well-fed when it's ~80% full)
The same goes for 0%. This is obvious. Would you like to stay hungry?
Like, really REALLY hungry? No, absolutely not!
So, the researchers suggest that you should always keep your battery
charged between 40-80%. Don't let it drop below 40%, and don't let it go
above 80%. Charge as frequently as you can ('Deep Charge a battery' is a
myth. It decreases battery lifespan rather than increasing it). Simply
doing this can increase your battery life span by about..... about.....
umm..... dang it, I forgot! It was something between 1.5x to 2.5x ...
P.S. I forgot to mention that the above-mentioned facts are true only
for the Li-ion batteries found in modern Smartphones and Laptops (IIRC)
---
meh, I'm gonna CC it to the mailing list anyway. This is something
everybody should know.
