Why is my iphone 7 saying its chargin but the battery percentage doesn't go up? I charged my phone for 20 min and the battery lvl didn't go up?

Why is my iphone 7 saying its chargin but the battery percentage doesn't go up? I charged my phone for 20 min and the battery lvl didn't go up?

Added (1). is anyone else's phone doing it?

Charge it overnight.

Try cleaning the charge port it may have lint or dust. Also try different charger

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