Why My Phone Is Charging Very Slowly. In order to fix it change the outlet. Hence the charging on your phone slows down.

Check the current if its less than 500 mA then its confirmed your data cable is damaged replace it and your issue will be fixed. The main reason why the mobile charge slowly is may be due to rough socket I mean due to frequent charging. A defective power source can cause slow charging.
In order to fix it change the outlet.
Your iPhone is charging slowly because there is some sort of gunk or debris stuck inside the Lightning port charging port of your iPhone. Of course a bad USB cable is one of the first places you should look if your phone is charging slowly. In order to fix it change the outlet. No matter how high-end your smartphone is its battery has a specific period when it operates at its best mode.
