My laptop is not charging. It blinks repeatedly when off and plugged in.

[DunstHaze]

When the battery is in and plugged in the battery light blinks repeatedly when plugged in. When the battery is out the white light is on but the laptop does not switch on. The battery is relatively new.

[erico]

Hi @DunstHaze ,

HP has produced and brought to market more than a thousand different models of notebooks and desktop PCs over the years. It is difficult to help you if we don't know which specific model you own..

Method #1: If the notebook will boot into Windows, you can retrieve your Product Number by pressing Fn + Esc key.

Method #2:
Remove the battery and look in the compartment where the battery was installed. You should see a Service tag with printed part number and a product name. Please post the p/n (with all alphanumeric characters) here. If you live outside of North America, it helps us if you post the country of purchase. Also post the installed CPU type. (AMD or Intel)

Don't forget to post the name of the installed operating system if you haven't already done that.

See This HP web document  If you are not able to identify your notebook with the first two methods.

What color is the power/battery led when the battery is in?
You state the battery is relatively new. How many months does that equate to?

Try a hard reset.  It may allow you to use the notebook without the battery.