My Inspiron 11 3168 will not power on without the power cord. It is very strange because at 1st it seems like a battery issue however I plug it in and it boots right up and the battery is fully charged. I can then unplug it and use it on battery power with no problem. It is just the booting up that is an issue. I have also tried putting it on never sleep while on battery but that did not help. While I am at home its not a problem for me to just plug it in however I purposely got this laptop for college and I cant always plug it in during class so I need it to work on battery. I have only had this laptop a little over a month now.
I'd suggest updating the System Setup(BIOS). Please follow instructions to safety install latest BIOS version in link below.
After installing latest BIOS version, run the Guide Me option in your Dell Product Support page. The tool automatically detect drivers for the system. Please follow instructions to run the Guide Me option in the link below:
Please check status of the AC adapter and battery health by follow steps below.
1. Power off system. Remove all peripherals (except AC adapter).
2. Power on system, quickly start tapping the F2 key continuously.
In the BIOS, AC adapter should be listed under the main tab or battery information. The adapter should say it type, if it says None or Unknown then it's an issue with the adapter, and most likely needs to be replace with a new genuine Dell adapter. Note: Please wiggle the adapter's end while checking it in the BIOS
The battery health should be listed under the Advanced tab or battery information. The battery health should say Your Battery Is Performing Normally or Excellent, any other message mean most likely the battery is faulty.
Thanks for your suggestions but unfortunately I am still having this problem. I checked the adapter and battery and both are ok the battery says it is performing normally. I am not sure what else to do.
If the system DOES recognize the AC adapter (F2 at powerup to check -- make sure it's not showing unknown), and the battery is recognized and appears to be functioning properly (no errors), that leaves the mainboard as the faulty part.
If the adapter is showing unknown, first try a new Dell adapter -- if that doesn't get the adapter recognized, replace the DC jack:
and if that doesn't get the problem solved, see above - the mainboard is faulty.
DO NOT assume that the adapter is working properly just because it powers the system -- if the system doesn't recognize the adapter, the battery will not charge properly.