Windows 10: Fully charged battery but laptop only works when plugged in to the power adaptor

I'm using a Dell Precision 6100 laptop

Running Windows 10 Pro

The battery is fully charged

The battery/power indicator light is flashing on the laptop.

If I unplug the power adaptor, the laptop instantly turns off.


All drivers are up to date.

I've shutdown & restarted, also removed battery and tried to power up.

I've run "troubleshooters" but no fault detected.


Any help is appreciated.

:)

 

Battery fully charged, but still charging


My laptop has a battery light which tells me when my laptop is fully charged. When it is fully charged (it is green), Windows still says "05 minutes until fully charged" and then charges for another half hour. In the past the light has been reliable, so I believe that windows 10 is the issue. My laptop has also had significant issues with charging. I can confirm this with two batteries. I have an Asus K55VD which I haven't changed the battery plugs in or anything like that. What could my problem be? Here's what I've tried:

-Disabling and re-enabling Microsoft ACPI-Compliant Control Method Battery (no change)
-Turning power saving off in BIOS (did a bit of help with the charging problem)
-Fixing the fan (turns out it wasn't spinning, which caused a range of issues. Helped the battery charge issue a bit)
-Keeping the laptop shut down (didn't help)
-Keeping it asleep (didn't help)
-Keeping it on with the screen off (did help it charge)

Yet I can't find a fix for the battery charging percentage and time issue. Any help would be appreciated.

 

Battery status 100% fully charged

Nope not every laptop is designed that way Lenovo LT are not they will when plugged in will only charge when the battery is below a set percentage and then charge it to 100% then quit charging.

 

My Computer is Plugged in but not Charging

My laptop computer is plugged in but not charging. The power supply will maintain the charge level (%), but not add to it. Removing and reinserting the battery allows the power supply to add to the % charge to 100%.

Steps performed:

• Turning the computer off and restarting it returns the computer to the Plugged in, Not Charging state.
  
• Removing the battery again allows one complete charge, after which the laptop would no longer charge again.
  
• I have used more than one power supply with the same condition.
  

To resolve the issue, I remove the battery, obtain a complete charge, and maintain this charge by always keeping the power supply plugged in.

What is the root of the problem?