• ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
  • ×
    Information
    Need Windows 11 help?
    Check documents on compatibility, FAQs, upgrade information and available fixes.
    Windows 11 Support Center.
  • post a message
Guidelines
Are you having HotKey issues? Click here for tips and tricks.
Common problems for Battery
We would like to share some of the most frequently asked questions about: Battery Reports, Hold a charge, Test and Calibrating Battery . Check out this link: Is your notebook plugged in and not charging?

‎03-16-2025 06:54 AM

HP Recommended

Good morning,

I have a Notebook HP - 15-dw0120nl laptop and I need an external battery to recharge the laptop for when I am away from home. I tried to connect a battery having 20000 mAh at 100W, namely supporting 9 V at 5.0 A. I see from the wall charger that this laptop needs 19.5 V at 3.3 A, and 65 W of power, so it needs less then the specifics I read on the external charger. But for some reason it plugs in from USB-C and does not charge the laptop.

It can receive charge FROM the laptop but does not give his power TO the laptop from the USB-C.

Can you help solving the problem?

Is there some WIndows setting to be changed?

Thanks,

Category:
Reply
1 REPLY 1

‎03-16-2025 12:34 PM

HP Recommended

Your laptop's USB Type-C port does not support power in, so you can't use it to charge the laptop.

 

From the specifications in the Maintenance & Service guide

(1) USB 3.1 Gen 1 Type-C port (left side); supports data transfer

 

The USB Tyoe-C port would have to have Alt DP mode support and Sleep & Charge to provide charging power to the notebook.


I am a volunteer forum member. If my suggestion helped you solve your issue, help others by marking that post as the accepted solution. Say thanks by clicking on the Yes button next to the "was this reply helpful?"



Reply
Was this reply helpful? Yes No
Warning
Be alert for scammers posting fake support phone numbers and/or email addresses on the community.
If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation.
Didn't find what you were looking for? Ask the community
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.