I always hear that it’s bad for lithium batteries to charge over 90% or over 90% so why is there no setting to stop charging after a certain threshold on my phone, kindle, pc or e-skate?

Question

I always hear that it’s bad for lithium batteries to charge over 90% or over 90% so why is there no setting to stop charging after a certain threshold on my phone, kindle, pc or e-skate?

In: 129

Answer 1

There is a sophisticated charging management unit for every lithium ion battery. Those chips handle all the things necessary to keep Li-ion cells happy. The percentages shown on screen are mostly fake guesstimates which only roughly correlate with the actual charging state of the cells.