My favorite way I’ve heard this explained is – compare a) charging your battery to b) filling up a cup with water from a faucet. You can only fill the cup up so quickly, without spilling water out of the cup into the sink. The difference is, with a battery, if you fill it too quickly and it “spills”, then your battery explodes. So, charging rates for any battery will always be well below that “possible spill” rate.
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