Laptop battery – 100% available plugged in charging

batterydell-inspironlaptoppower supply

I have a Dell Inspiron 5521 running Windows 8.1.Recently, I had replaced my battery.But my battery indicator shows 100% available ( plugged in,charging) status. I calibrated the battery but no difference. Battery is still in good condition and it still holds a 4-5 hours talk time.

What should I do to fix this problem or is it safe to continue using with AC power. Charging indicator bulb is turned on all the time so I feel that the laptop tries to overcharge the battery. Will it reduce the battery life?

Best Answer

Best way to full discharge the battery (calibrate it) is to drain it as low as you can while in Windows, then restart the PC and enter the bios setup screen, leave it in setup until the battery drains and turns off the PC, then plug it in and let charge for a few hours before turning it on.

If no joy, try this. It may or may not remedy the issue:

  • Disconnect AC
  • Shutdown
  • Remove battery
  • Press and hold power button for 30 seconds
  • Connect AC only (no battery)
  • Startup
  • Open Device Manager
  • Click the plus (+) sign next to Batteries category, right-click all of the "Microsoft ACPI Compliant Control Method Battery" listings, and select Uninstall In the "Confirm Device Uninstall" dialog box, click OK. (it’s ok if you only have 1 of these).
  • Click the plus (+) sign next to System Devices.
  • Right-click the “ACPI Fixed Features Button" and select Uninstall. In the "Confirm Device Uninstall" dialog box, click OK.
  • Shutdown
  • Disconnect AC
  • Insert battery
  • Connect AC
  • Startup
Related Question