My smartphone automatically switched off at battery bellow 30% charge.after that login phone again,it become very hot and battery reduce speedly.
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My smartphone automatically switched off at battery bellow 30% charge.after that login phone again,it become very hot and battery reduce speedly.
Welcome to Android Central! Which phone? The battery is probably failing. If the battery is removable, try a new one.
And if you keep running it down way below 30%, it's going to fail quickly even if you replace it with a good one. Lithium batteries are not deep discharge batteries. (We use them because they're the lightest batteries we can make.)