Sleekbook 15-b040sl: AC adapter blinking white

I have a sleekbook of 8 months 15-b040sl running Windows 8, which has never given any problems so far.

Today without changing anything (I was not even plugged into the laptop from the AC) the light on the adapter ac (the one that becomes) orange when the battery is under load has started flashing white with the pc is turned off. BTW, the battery is connected.

I turned on the PC and the light still flashes white, but so far, the PC seems to work fine without any error message or anomaly.

I'm still worried about this flashing light, however, I wonder if there is something I can do to solve this problem, or at least to understand what caused it, and if I should send it using techniques.

Thanks in advance for the help

EDIT: I doubt that this can help, but just in case.

white light flashes once every second, but remove the power cord, while the laptop is alimented by the battery and turned off, causing the light to stay lit for 35 seconds and off for 25 seconds. If I turn on the laptop with the battery Cordless it flashes once every second

Hello @Iaaf ,

Welcome to the HP Forums!

I understand that the power of entry on your laptop light acted funky lately.

I took a look at your products user guide and found the following information on the power adapter light:

  • White: the power adapter is plugged in and the battery is charged.
  • White flashing: the battery has reached a low battery level.
  • Amber: the power adapter is plugged in and the battery recharges.
  • Off: the computer is using DC power.

If the portable computer is running on battery and charge not the adapter light will blink white. If the adapter will flash white while the adapter is connected, this could be a sign that the adapter is not charging the battery. Have you noticed if the battery icon in your task bar shows that the battery is supported or not?

You may need to perform a hard reset:

  1. Turn off the laptop.
  2. Disconnect the power adapter.
  3. Remove the battery.
  4. Press and hold the power for 30 seconds.
  5. Re-connect battery.
  6. Reconnect the AC adapter.
  7. Turn on the laptop.

You can also test and calibrate your battery. You can see information about this operation here: test and calibrate the battery (Windows 8).

Let me know if it helps!

-Edited to add battery test and calibration document.

Tags: Notebooks

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