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- HP Community
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- Re: external battery

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10-07-2025 08:38 AM
Hi the community
Laptop HP 2 in 1 Pavillion x360 14-ek1009nf
Im looking for an external battery for my laptop because i often have to stay outside for 8 or 9 hours ans i don't have access to an electrical soscket during all those hours . Are you aware of any similar products on the market for this computer
With my thanks
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Accepted Solutions
10-15-2025 02:55 PM
Hi @Corsaire2024,
Thank you for your update. I understand you’re using a Romoss 20,000 mAh external battery with an output of 5V/1A, but your HP Pavilion x360 14-ek1009nf requires 19V and 45W for proper charging. You are correct — the current power bank will not provide enough voltage or wattage to charge your laptop effectively.
To safely power your laptop on the go, you will need a USB-C Power Delivery (PD) power bank that meets the following requirements:
Output Voltage & Wattage
At least 45W via USB-C PD (some laptops can accept 65W for faster charging).
Typical voltage range: 19–20V (most USB-C PD power banks automatically adjust voltage based on the laptop’s needs).
Capacity
For a full day’s use (8–9 hours), aim for 20,000–30,000 mAh.
Cable Compatibility
Use a USB-C to USB-C cable rated for PD and high wattage.
Recommended Options:
Zendure SuperTank 27,000 mAh, 100W PD
Anker PowerCore+ 26,800 mAh, 60–100W PD
RAVPower 30,000 mAh, 90W PD
Tips for Safe Use:
Fully charge the power bank before use.
Avoid using other high-power devices on the same power bank simultaneously.
Test at home first to ensure it provides enough runtime for your workload.
Using a 5V/1A battery will not charge your laptop and may even cause instability. A PD-compatible power bank with adequate voltage and wattage is essential.
I hope this helps.
I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨
Take care and have an amazing day ahead! 🚀
Best regards,
I'm an HP Employee.
If this reply helped resolve your issue, please select the Accept as Solution as it helps others in the community quickly find the answer they’re looking for.
And if you found this reply helpful, clicking Yes below is a great way to let us know we’re providing the support you need, as it encourages us to keep improving and sharing helpful guidance.
10-09-2025 10:28 AM
Hi @Corsaire2024,
Welcome to the HP Support Community!
Thanks for reaching out!
We're thrilled to have the opportunity to assist you and provide a solution.
I understand you are looking for an external battery solution for your HP Pavilion x360 14-ek1009nf so you can stay powered while away from an electrical outlet. Let’s go through a few options and steps to get this working safely.
Check Laptop Power Requirements
Your HP Pavilion x360 14-ek1009nf charges via USB-C PD (Power Delivery).
Note your laptop’s wattage requirement (usually 45–65W) to ensure the external battery can supply enough power.
Choose a Compatible External Battery
Look for a USB-C PD power bank that can deliver at least your laptop’s wattage.
Recommended capacities: 20,000–30,000 mAh for several hours of use.
Examples:
Zendure SuperTank 27,000 mAh, 100W PD
Anker PowerCore+ 26,800 mAh, 27W PD
RAVPower 20,000 mAh, 30W PD
Connect the Battery to Your Laptop
Use a USB-C to USB-C cable that supports Power Delivery.
Plug the cable into your laptop’s charging port and the power bank’s USB-C PD port.
Monitor Charging and Usage
Ensure the power bank starts delivering power (usually indicated by a light or display).
Avoid using other high-power devices from the same power bank simultaneously, as it may reduce laptop charging speed.
Keep the Power Bank Charged
Fully charge the power bank before leaving home.
Some power banks support pass-through charging (charging the bank while powering the laptop), check the manufacturer instructions if you plan to use it this way.
Positioning and Safety
Keep the power bank on a stable surface, away from heat sources.
Avoid fully discharging the power bank regularly, as this can shorten its lifespan.
Test Before Extended Use
Connect the power bank and run your laptop for a few hours at home to verify it provides enough power for your typical workload.
Optional Accessories
Consider a USB-C PD hub if you need to power multiple devices at once.
Ensure all cables are rated for high-wattage USB-C PD to avoid slow charging or damage.
I hope this helps.
I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨
Take care and have an amazing day ahead! 🚀
Best regards,
I'm an HP Employee.
If this reply helped resolve your issue, please select the Accept as Solution as it helps others in the community quickly find the answer they’re looking for.
And if you found this reply helpful, clicking Yes below is a great way to let us know we’re providing the support you need, as it encourages us to keep improving and sharing helpful guidance.
10-14-2025 03:29 AM
Hello and thank you for your help.
I have a Romoss 20,000mAh 1A external battery. The output is 5 volts and 1A.
The computer is powered by 19 volts and 45 watts.
I gather that I need a power supply with an output of 20 volts?
Many thanks.
10-15-2025 02:55 PM
Hi @Corsaire2024,
Thank you for your update. I understand you’re using a Romoss 20,000 mAh external battery with an output of 5V/1A, but your HP Pavilion x360 14-ek1009nf requires 19V and 45W for proper charging. You are correct — the current power bank will not provide enough voltage or wattage to charge your laptop effectively.
To safely power your laptop on the go, you will need a USB-C Power Delivery (PD) power bank that meets the following requirements:
Output Voltage & Wattage
At least 45W via USB-C PD (some laptops can accept 65W for faster charging).
Typical voltage range: 19–20V (most USB-C PD power banks automatically adjust voltage based on the laptop’s needs).
Capacity
For a full day’s use (8–9 hours), aim for 20,000–30,000 mAh.
Cable Compatibility
Use a USB-C to USB-C cable rated for PD and high wattage.
Recommended Options:
Zendure SuperTank 27,000 mAh, 100W PD
Anker PowerCore+ 26,800 mAh, 60–100W PD
RAVPower 30,000 mAh, 90W PD
Tips for Safe Use:
Fully charge the power bank before use.
Avoid using other high-power devices on the same power bank simultaneously.
Test at home first to ensure it provides enough runtime for your workload.
Using a 5V/1A battery will not charge your laptop and may even cause instability. A PD-compatible power bank with adequate voltage and wattage is essential.
I hope this helps.
I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨
Take care and have an amazing day ahead! 🚀
Best regards,
I'm an HP Employee.
If this reply helped resolve your issue, please select the Accept as Solution as it helps others in the community quickly find the answer they’re looking for.
And if you found this reply helpful, clicking Yes below is a great way to let us know we’re providing the support you need, as it encourages us to keep improving and sharing helpful guidance.