Charging via USB-C

[Marcin94]

Hello!

I see that my laptop have an USB-C with Power Delivery. I have specified powerbank for notebooks, which works perfectly fine with other laptops (giving up to 96W), but in this laptop not. Powerbank charge only for few seconds and then my laptop starts to charge powerbank. How can i change that? 
Second guestion - i have GaN charger 100W, which should give that power on 1 output - and it works, like in powerbank case, with all other laptops. With this Omen it works only with about 50W, and i have notification from windows about slow charging port. How can i change it?

It's not powerbank or charger issue, because it works at least in 3 different cases, so i think that some setting or driver could change it. 

[Kuroi_Kenshi]

Hi @Marcin94,

Welcome to the HP Support Community!

I understand that your OMEN 16 16-ap0000 (BL6K2AV) recognizes USB-C power, but your 96W power bank charges the laptop for only a few seconds before the laptop begins supplying power back to the power bank. You also have a 100W GaN charger, but Windows reports slow charging, and the laptop appears to draw only around 50W.

The behavior you're describing does not necessarily indicate a Windows driver or setting problem. USB-C Power Delivery (PD) requires the laptop and power source to negotiate a compatible power profile. The laptop may also limit USB-C charging based on its hardware and current power requirements. The dedicated 230W AC adapter is designed to provide substantially more power than a USB-C source.

Check the USB-C charging behavior.

1. Update the BIOS and HP drivers available specifically for your OMEN 16 16-ap0000 (BL6K2AV) through HP Support. Firmware updates can address power management and USB-C compatibility issues.
2. Shut down the OMEN completely and connect the 100W GaN charger while the laptop is powered off. Check whether the battery begins charging normally in this state.
3. In Windows, check Settings > System > Power & battery for available charging or power-management options. Avoid changing BIOS power settings unless an HP-supported option is specifically provided for this model.
4. Test the 100W charger when the battery is below 50% and the laptop is idle. Under gaming or other heavy workloads, the laptop can require considerably more power than a 100W USB-C source can provide.

Why a 100W charger may not deliver 100W

A charger being rated at 100W does not mean the OMEN will necessarily draw 100W through USB-C. The actual charging power depends on the USB-C PD profiles supported by both devices and the power level the laptop is designed to accept through that port.

Likewise, if the 96W power bank changes direction and begins receiving power from the laptop, this suggests a USB-C power-role/PD negotiation issue rather than simply insufficient battery capacity. The exact PD profiles supported by the power bank are therefore important.

If the problem continues, please provide the exact make and model of the 96W power bank and the 100W GaN charger, along with their USB-C PD output specifications (for example, the listed voltage/current combinations such as 5V/3A, 9V/3A, 15V/3A, or 20V/5A). This will allow us to determine whether their PD profiles are compatible with the OMEN.

Best regards,
Kuroi_Kenshi

[Marcin94]

1. BIOS is updated.
2. It's the same, and i don't need to charge my laptop when it's turned off - i want to use it with powerbank (100W btw, 96W is power delivered on other laptops)
3. What exactly i could, in your opinions, changed there? It's like standard respond, or you have knowledge what exactly types of options are there?
4. Nothing changed. Still, shouldn't it JUST WORK with charging my laptop? I had Firefox opened, it's not AAA gaming 

[Marcin94]

I updated BIOS few days ago. Yeah, it's sound the same for me, but why HP laptop cannot negotiate better? xd
With other brands it's working perfectly fine, i have 3x the same powerbank, all the same. 

[Adiakys]

@Kuroi_Kenshi I have the same problem as @Marcin94, and I measured it. It is not a negotiation problem.

Unit: OMEN 16-ap0004nl, product D93TFEA#ABZ, board 8E35, BIOS F.11. The F.12 and F.13 changelogs only mention USB Type-A, so updating changes nothing here.

Results on the single USB-C PD port, read from the OS (UCSI) and from the EC:

- 100W charger alone, contract 20V x 5A = 100W: accepted, charges.
- Same charger with a phone on the 2nd port, contract 20V x 3.25A = 65W: rejected, laptop runs on battery.
- USB-C dock, contract 20V x 4.25A = 85W: rejected.

In every case the PD contract is established and the EC records it: it sees the PD source and stores the negotiated voltage, current and power. Only at 100W does it set the "adapter accepted" flag. Below that, nothing is drawn. The firmware is deliberately refusing any contract under 100W.

That makes no sense. At idle this machine draws about 30W and the battery charges at about 30W, so 65W covers both. Plenty of laptops, HP business models included, accept 65W PD and simply charge slower with a "slow charger" notice. Refusing even 85W turns a USB-C PD port into a single-charger port, which defeats the whole point of the EU common charger rules.

I'm honestly annoyed. I bought a laptop with USB-C PD and I can't use my dock, or charge from a normal multi-port charger as soon as my phone is plugged in too. Please escalate this to the firmware/EC team and tell us whether HP will:

1. accept PD sources from 65W, charging slowly and using the battery to cover peaks, or
2. at least add a BIOS option for it.

Even a clear yes or no on whether HP plans to change this would already help me decide what to do.