eli5: Why does it take longer for mobile batteries to charge after 70-80%?

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While the batteries now a days charge from 0 to 50 in like 5 to 10 minutes, it almost takes twice as long to charge from that point 100%.

Why?

In: Technology

5 Answers

Anonymous 0 Comments

First of all the energy % level is hard to actually measure for most batteries, and your phone estimates how full it really is. How this estimation is done makes a big difference for this.

Also the fuller a battery is the harder it gets to fill it further because less material to react is left, and the “force to decharge it” gets stronger.

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