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

Teslas also do this. There is your “daily” charge, which is like 80% of your max. You can choose to charge to 100% for “trips”, which gives you another 60 miles of range.

Interestingly, there was a problem recently with Teslas that was fixed with an OTA (over the air) update. If you don’t occasionally charge to full, you lose the ability to accurately determine how much charge you have. Cars were reaching 0% charge, when the car thought it had more charge. You have to charge to 100% occasionally (like once a month) to calibrate.