I have just seen a post about battery usage and how batteries actually get weaker each loading cycle. Also, I have heard that batteries should be kept in the range from 20% to 80% since its better for their durability. It seems to me that these facts refute each other. So how are both of them true apparantly?
In: 5
I think this used to be the case, but batteries have gone a long way since, and it no longer applies. You used to have to discharge it fully and then charge it right back up, also fully, the first time you were using your phone out of the box. Something about optimization or whatever – it would always take longer to charge beyond 80%.
It does apply indeed. You have cycle ageing and calendar aging influencing the capacity and available power of a modern day lithium-ion battery.
https://batteryuniversity.com is a great source of information.
Look up “memory effect” in batteries. I think it only effects some, not all, types of batteries.
Above 80% it becomes difficult and difficult to charge battery. Most power gets dissipated as heat. This heat is bad for battery and causes degradation.
The below 20% part is because they don’t want the voltage to drop too much which can again degrade the battery. This part had been taken care by the battery management module and should not be of concern unless you won’t be using the phone for long time.
For the 80 to 100 range it’s because the time it takes to charge from 80 to 100, is usually not worth it (it takes longer but the battery usage from 100 to 80 is not long enough to justify that extra charge time).
For the 20 to 0 range it’s really just advising against getting the battery completely discharged. It’s ok to run it lower if you avoid it getting all the way to 0 .
Latest Answers