Why should you never charge a battery to full?

Question

For that matter what is it with batteries that make them so fickle?

You can’t charge them to full, but at the same time you can’t let them die, but at the same time you should wait for them to die before you charge since constant charging is bad, but at the same time not charging enough is also bad like what’s the real deal with batteries T_T

In: Technology

Answer 1

The manufacturer also knows this, and puts the limit on in software and hardware systems – when your phone says 100% it is actually 90% or whatever limit the manufacturer set.

Just as an example.