I am facing peculiar problem. If my laptop is connect to power source and then I hibernate the laptop. It wont hibernate completely till it drains all the power out of the battery and on the other hand when the laptop is hibernated when on battery this issue is not observed. So I am looking for help by which i can nail the problem and then solve it. Regards
Have you turned off the laptop for 24hrs with a full charge and seen what the charge is when turning back on. Have you made sure you have no BIOS/UEFI updates ?. Hibernation will use some power, it's not like OFF and if you have any wake setting in BIOS/UEFI, it will use power. I read your post to quickly. So in hibernate the system is not taking a charge, it's impossible to drain bat with ac and a max of 7w usage. Try a hard reset. Go to devise MGR, Under the Batteries section right click on the “Microsoft APCI-Compliant Control Method Battery” and select “Uninstall” , Shutdown your computer and remove AC, Remove the battery for 1 hour, press and hold power button for 30 sec, Reinstall the battery, Turn on your computer with your AC adapter, Windows should automatically recognize the “new” battery hardware and reinstall the driver for you, if not run windows update. Problem still there, I would contact MFG. Unless it's not a 8 or 9 series chip, then it doesn't support 10.
There is no BIOS/UEFI update that is pending. Have installed the lastest drivers from dell for the graphics. I do not use LAN with the laptop. When on battery this problem do not occur.
Sounds like a short or bad AC which is allowing a power drain with AC, but that's just weird that it doesn't happen all the time and only when Hib.
It's easy. Just open the Command Prompt as Administrator and type: Code: powercfg -AVAILABLESLEEPSTATES Excerpt from the powercfg help: Code: -AVAILABLESLEEPSTATES, -A Reports the sleep states available on the system Attempts to report reasons why sleep states are unavailable.