My device is Lenovo Tab 2 A8 50 lc ,

Solution
Test the charger cord to see if it is good. Either try your cord in another device, or try another devices cord on your device.

Should that not be the problem, then check the battery to see if it needs replacing.

NOTE: Yes, I know tablet batteries are not so easy to get to, on some devices. In such a case, make sure that your tablet is not under warranty still before you try opening it up yourself. If it is under warranty, then contact the manufacturer first.
Test the charger cord to see if it is good. Either try your cord in another device, or try another devices cord on your device.

Should that not be the problem, then check the battery to see if it needs replacing.

NOTE: Yes, I know tablet batteries are not so easy to get to, on some devices. In such a case, make sure that your tablet is not under warranty still before you try opening it up yourself. If it is under warranty, then contact the manufacturer first.
 
Solution