Hi10 Go PD charge

Looks like the Hi10 GO support s PD charge on both usb type C plugs, probably PD3.0
My Baseus 60W PD charger works fine (type C to type C)

Xiaomi 100W cig lighter charger works too with type C male-male.
Led becomes green and blue.

The outcome is that any PD charger above 60W is going to work.

I have no luck with this device even with the charger.
I try two turbo charger from two different brands.




It seems to me, Chuwi, to be, cheap, didn’t spend resources with it.
They simple force a tipe-C connector to source 12V up to 2A. If you had it working on another charger(PD compatible) is just lucky.

You didn’t get it and you didn’t read above.
60W !

It works with any PD charger able to output 12V/3A. Btw, this is the bare minimum required by the tablet.
None of your chargers is able to achieve that.

I have the 100w cig lighter charger installed in my car since weeks, and it works seamlessly. It charges faster than the tablet draws current, especially at max backlight, hopefully !

Note: PD3.0 is only supported through a type C male-male cable.

I read all above before write my teory here.
I read the Chuwi´s Charger spec also. It´s 24W, 12V, 2 A, so, barely lower than 12V/3A.
My concern is, if you connect a 100W charger, probably (and luckely) it will just source the same 24W like the original charger, otherwise you may burn the tablet internal charge controller and shrink the battery life.
If Chuwi had implemented the (i.e PD 3.0), according IEC 62680 Rev. 3.0 USB Power delivery specification, beyond the compatibility it should be with all antecessor revisions, when working with 12V, it should work with any current upt to 5.0A.
According tests performed by me, with 2 different brands chargers, it doesn´t work. Both the chargers are compatible with the standard, which does not define minimal current as we can see on the table.
table_4.14

That´s why I wrote which, Chuwi, UOS, do not implement PD on it´s charger or device. I warn every one which use those devices to be precautive and just assume it´s PD compatible after we get expressive confirmation from Chuwi.

PS. I advise: do not use Chuwi´s chargers on your other devices also. Mainly if the device isn´t PD compatible, probably will get hot or even burn.

The charger provided is obviously 12/2A 24W hardcoded.

Have fun !

Nice shots.
I prefer don´t judge if things are obvius until I look directly inside.
l try to contribute to common knoledge.bringing facts widhout judgments.
Thank you for your contributions with tests and measurements.

Let´s analyse the setup you brought to us.
You, use Hommie USB Digital Tester, Xiaomi charger and cable. I suppose you are charging a Chuwi Hi 10 Go during this test.
So, Chuwi Hi 10 Go has a 22.42Wh battery. On the example you brougt to us, it´s already charged in 77% thus missing just 23% to be fully charged. It represents 5,16Wh. In your case it´s missing 51 minutes. To charge 5.16Wh in 51 minutes, we need a charger no lower than 6.95W (considering .95 eficiency). UOS, it´s clear to me, we don´t need a 60W charger. Both two chargers I tested: 14.4W and 18W are able to achieve that.
Regarding your power meter, did you set up the current limiter or test with factory reset values? Regarding the charger, it´s a nice equipment, congratulations.

Regarding bibliography you bring on last post, I liked a lot and have fun too. it brings the IEC 63002 which treat interability between devices, but dont bring more information about PD beiond IEC 62680 exept PDP which is an extension standard and is not under our discussion, right?

Bibliography

https://manuals.plus/hommie/usb-digital-tester-manual.pdf
http://www.eletrica.ufpr.br/mehl/fonteschaveadas.pdf

It looks like you don’t believe others neither :wink:

My shot is low power charge (end of charge), green led on the charger.
When the battery is exhausted, the charge is medium power, blue led on the charger. AFAIR, it was about 15V / 1.5-1.6A. I don’t remember at which percentage it switches to green led but it does. This is what we call power negociation, no ?
With PD, the charge is not going to start if the charger has not a minimum power rating and able to sustain a minimum current for a given voltage, this is what does happen with your chargers. The PD charger must be somewhere 40W-60W min., or above, and able to sustain 12V/3A as PDP. The standard ones are 27, 45 or 60. To be safe, take 60 as a min.

(USB-PD™ Power Reserve and You. Part 2: Methods of implementing… | by Nathan K. | Medium)

Yes, I´m not a good believer. :sweat_smile:
Thank you again for the informations you brought to us.
Now we are introducing PDP on discussion. OMG.
But even in this new context, I keep thinking which the PD minimal capabilities and consequently PDP minimal capabilities do not include minimal current to work in any of the power profiles, they just constraint V and i to be inside the square profile (PPS APDO Max Voltage, PPS APDO Min Voltage, iPpsCLMin, iPpsCLMax) according figure attached.
When the UFP start cross those lines, it’s time to change power profile.
It doesn’t mean you have to be able to work on whole this area. If source has an current limitation below iPpsCLMax, just inform it to sink. Thus the sink will set RDO according limits informed. But if the charge is greather/lower demanding a current outside iPpsCLOperating, it will set operation mode flag and bring the current back to iPpsCLOperating. It seems confusing but make sense and allow charge with currents below 3A without crack the standard.

Now, other doubt: Looking again to Hi 10 Go current spec, they claims USB 3.0 *1 (Full-featured TYPE-C).
How can it be possible? Type-c was introduced at USB 3.1. :man_shrugging:
Full-feature TYPE-C under the USB 3.0 scope means no feature, don´t you agree?
Never mind with my questions. Tomorow I will try exchange the charger I bought for another whitch claims to be PD compatible, 36W 12V/3A or greater (USB-C cable with e-marked) and try to finish with my suffering and doubts. :see_no_evil:

Hi.
Just to update the thread with more one sucessfull case.
As I said before, I went to bought a new charger PD compatible capable to reach power profile #3(12V@3A) as RC300 suggested as minimal and it worked now.
Thanks for advises RC300.
It reach also the power profile #4 partially(20V@2.25A)
The charger has been sold as laptop charger. A good tip to who will looking for one.
But even with this new charger my Hi 10 Go don´t go. It stays with black screen and do not turns on since first day I bought it.
PS: The chargers I tested before, actually are QC compatible. It can be the reason why they don´t charge my device. But in store where I bough the 45W PD compatible, I tryed chargers PD 18W and PD 20W but they didn´t charge neither.

:+1: so, you trust at least one person from now on

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