Hi Sammy,
You may try the steps mentioned below to troubleshoot the issue:
1. Perform flea power. Remove the power cable and hold the power button down for 15-20 seconds and then put the battery and the adapter back in and start the computer. Check if it works.
2. Check the jack on the AC Adapter and system power for any damage.
3. Try charging with the laptop turned off.
4. Check if it charges when you wiggle the AC adapter.
5. You may also try connecting the AC adapter in a different good known power outlet.
6. Test with a different, compatible and a good known battery (if available).
7. You may also run diagnostics on the battery to make sure if the battery is at fault. Use the link: http://dell.to/19o2OYC
If you get any errors replace the battery.
For more information on battery not charging issue, refer to the link: http://dell.to/14KkuQK
Hope this helps.
Thanks and Regards
Priyanka S