Basically the title.
How do devices measure the amount of energy stored in them? What do they measure to say that I have 87% battery left?
In: 3
They count the current that leaves or enters the battery and estimate a percentage. I.E. last time we counted 3000mAh from 100% to 0%, then we charged 1500mAh and used 500mAh of it so our percentage must be 33%
And yes that means it can be inaccurate if you didn’t do a full charge cycle in a while
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