Originally Posted by
candy84 Is it still true that you should wait till the battery is almost at nothing before you charge it?
I thought that was only for old batteries, and now you can just charge it when you need to without any negative effects on the battery.
Had a bit of a debatE and was wondering what was correct.
That tidbit was true for older battery technologies as they had a "memory effect" which caused them to lose their capacity after being repeatedly partially discharged and charged.
It is not true for lithium batteries, of which most modern electronic devices use. Lithium batteries are happiest when they are between 30 - 90% charged and are most unhappy when they are near 0%. Leaving lithium batteries near 0% for extended periods of time can significantly reduce their useful life and may even be dangerous.
All batteries begin degrading once manufactured and have a finite lifespan - for now at least. Avoiding stress (extreme temperatures, frequent discharging / charging to and from 0%) on them will slow down the degradation.
Source: I read this book:
https://www.amazon.com/Batteries-Por...mUvbUpU2874604