ZBook Power G9 DC power specification

[resistencia]

The power of a charger is not a whim of HP engineers, if a computer needs a 130 watt power charger that is what should be used to avoid problems, using chargers with power outside the specifications gives an erratic operation and the tests you do are not valid to make a diagnosis.

I have a mobile iphone with an original 15 watt charger and another 5 watt charger, clearly it charges faster with the 15 watt, the other 5 watt charger does not charge fast. I have another mobile iphone with the battery at 70% charge capacity (it is almost dead), it only charges with the iphone off using the 5 watt charger, but if I put the 15 watt charger on it charges without problems, this is so you can see the importance of the watts.

[msssm]

Useless.

I just say the written specification docs are wrong. They are written by HP. If they purchase the charging  blocks from 3rd party, then they need to copy their specs thoroughly or claim them.

I have measurement equipment to measure voltage and amperes on USB side, also analysing PD protocols for available standards of devices. Might be that also the charger specifications are bad but I have tested a lot of 60W chargers and none have been working.

Because in switched-off state the charger is delivering 60W with 20V/3A it's the ZBook rejecting this when switched-on.

[msssm]

Finally I have enough working USB-C chargers delivering 100W, but there is no KVM switch yet on the market for these power specs.

[TzortzisG]

The laptop manufacturers decide on the details that have to do with USB-C charging, or even the normal barrel type charging for that matter, and together with the BIOS coders can block some of the lower specs or even completely block USB-C charging. For testing purposes, you can try to see if this workaround found by users on a completely different system works for you (follow the links): https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/Can-the-HP-Envy-16-h1001ni-804....

Personally. I prefer the old-fashioned barrel chargers and in fact, when I purchase an HP system, one of the first things I do is upgrade the charger by getting the OEM with the highest possible power output available for this system. My G8, G9 systems came with USB-C chargers and I immediately ordered normal chargers. To each his own I guess.

[resistencia]

does not charge because it is 60 watt

see page 100 of manual service,  explains that the processor, graphics and other functions are priority for power consumption and therefore may stop charging the battery in case of an error.

Maintenance and Service Guide

HP Smart AC adapter warning message: informs you that as power demands increase, the
notebook may not perform at full capacity, which may result in longer battery-charging time.
In cases of extreme power demands, the system may also throttle back the processor, or
with systems that have a discrete video subsystem, a video balance mode may occur to
further balance the power needs of the system.
Because system processor functions always have priority over battery charging, charging
delays occur first