I’ve noticed that my phone will charge really quickly up to 50%ish and then the speed it charges to 100% is much slower. I’ve found this true for other devices too, why do batteries charge quicker when they’re empty and then the speed slows down to get it to 100%?
In: Technology
Think of pouring water into a mug. When it’s empty, you can pour quickly. But unless you want spilling boiling water all over, you have to slow down when it’s getting full.
Overcharging batteries, especially the lithium kind is bad. It damages the battery and can result in the battery catching on fire if you really overdo it.
That’s why these days we have charge controllers that take care of doing the charging right, and protection circuits that will disconnect the battery if something goes wrong.
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