Q&A: Plugged in, NOT charging, 97% remaining. Fault or feature?
Posted by James on September 1, 2011 · 5 Comments
Question by jheel: Plugged in, NOT charging, 97% remaining. Fault or feature?
My HP Laptop is like 7 days old. (HP ProBook 4520s)
It says “Plugged in, Not Charging, 97% remaining”, and the charging status indicator LED stays off..
Searched for this keyword in google, and apparently it’s a problem/ hardware fault.
But then if i run the computer on batteries till it says 40% remaining and then plug in the charger, the charging indicator LED turns on and it says “plugged in, charging”.
Is this a feature to save the battery from overcharging? Or is this a hardware fault and I should get in touch with HP?
Best answer:
Answer by Joe
I have two from different companies and they have both said that. None of them is more than three years old. I don’t think it’s a fault or a feature, just when it’s near fully charged, it slows down enough that it’s impossible for the machine to detect whether it’s charging or not.
What do you think? Answer below!
It seems to be a hardware fault, where the charging power IC may have gone faulty.
its the power management software, try this:
1.Click Start and type device in the search field, then select Device Manager .
2.Expand the Batteries category.
3.Under the Batteries category, right-click the Microsoft ACPI Compliant Control Method Battery listing, and select Uninstall .
WARNING:Do not remove the Microsoft AC Adapter driver or any other ACPI compliant driver.
4.On the Device Manager taskbar, click Scan for hardware changes .
Alternately, select Action > Scan for hardware changes .
Windows will scan your computer for hardware that doesn’t have drivers installed, and will install the drivers needed to manage your battery’s power. The notebook should now indicate that the battery is charging.
I think it’s a voltage problem of your charger or your power supply. Make sure that your charger is getting necessary voltage, which is written as INPUT on your charger. It means that if your battery is 12V then your charger should give him 13V then it could charge it fully. The problem is that when your battery gets to 97% then it’s potential becomes 12 V and if your changer is giving an output 12V then your computer will say “Not Charging”.
To solve it you need to change the charger. or if your power-supply voltage is low then use a stabilizer.
You will seldom get a 100% of anything in life.
The battery is charging as expected when it needs it, its fine. Recalibrate the battery after a month or so and you will probably find all sorts itself, see link
Enjoy using your machine and stop looking for problems 🙂
totally agree with steve on this