The AC power adapter type cannot be determined. Your system will operate slower and battery will not charge. This problem might be solved by:

-Ensure the plug is inserted completely for best system operation

-Connect a Dell 65W AC adapter or higher.

Hi, I have been getting this problem since yesterday. It seems my laptop is not charging when ac power adapter is connected, but batter power is not reduced( it does not go down from 14%). My laptop is Dell Inspiron 15R 5537 and I purchased it on September 2013. I already tried BIOS update and any other drive updates, but that has not solved problem. (In BIOS setting, it says UNKNOWN)