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Question 40W Charger not working

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Biggenz

Senior Member
Sep 19, 2014
418
114
I have two Huawei 40W chargers and both of them won't charge my Pixel. You plug it in and it actually discharges the battery, on both of them. It charges fine on two 18W chargers I've got, but it takes forever.

Has anyone else got this problem?
 

morpheus620

Senior Member
Mar 8, 2012
832
285
Cottbus
no. this have DC 3.3-11V/3A.
you need a charger with 3,3V-21V. Samsung have a charger with 21V ( Ep-TA845 )

But not all PPS is the same. There are many chargers with PPS that have a maximum of 11V or 16V.
 

kramer987

Senior Member
Dec 22, 2010
312
68
Is the OnePlus 65W warp charger good for the full 30W?
I can't speak from experience, but my immediate answer has to be no. OnePlus uses a proprietary technology. You generally cannot use their cables OR chargers for anything other than OnePlus products.

I am personally coming from the OnePlus 6T which used a dash charger. Not the warp charger, but basically the same tech. And I tried that charger on the phone and it DID NOT even register that it was charging more than basic USB 2.0 trickle charging.
 

kramer987

Senior Member
Dec 22, 2010
312
68
The 65W one is supposedly PPS and PD compliant.
don't you have your phone in hand? you just unlocked it. try to charge it lol. what do accubattery/AMPERE report for volts/amps? just do the math and you will see what wattage you are using.

but again, i am pretty certain the oneplus tech is just different and totally incompatible.
 

LLStarks

Senior Member
Jun 1, 2012
1,675
690
Ampere is kinda funky when measuring fast charging since the voltage readings aren't correct. But I'll keep testing.

Might only be getting 18W.

Edit: Warp Charger 65T is missing PPS 21V⎓1.5A but it should be able to do PD 9V⎓3A or PPS 3.3-16V⎓3A. Guess it's not good enough. This is incredibly annoying because OnePlus and others have followed the standard but if PPS branding isn't enough, that's horrible.
 
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Biggenz

Senior Member
Sep 19, 2014
418
114
I ordered this 67W charger from Xiaomi. £18 delivered.
 

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harryw66

Senior Member
Oct 2, 2010
250
39
Google Pixel 6
In case it helps:

My P6 is charging fine Rapidly with the USB-C port on a Tronsmart U5P (60w multiport charger) - maybe not at max speed, but the screen shows 'Charging Rapidly' - normal speed on the other ports.

It also charges at normal speed using a Q34U2Q CHOETECH USB C PD charger.

Update: I also tested with a Tronsmart W2PTU with USB-C port and that also shows 'Charging Rapidly'..


Also, the Spigen Arcstation is back on 25% discount on Amazon UK right now
 
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mitchst2

Senior Member
Nov 9, 2011
3,667
1,663
HTC One (m7)
HTC 10
In case it helps:

My P6 is charging fine Rapidly with the USB-C port on a Tronsmart U5P (60w multiport charger) - maybe not at max speed, but the screen shows 'Charging Rapidly' - normal speed on the other ports.

It also charges at normal speed using a Q34U2Q CHOETECH USB C PD charger.

Update: I also tested with a Tronsmart W2PTU with USB-C port and that also shows 'Charging Rapidly'..


Also, the Spigen Arcstation is back on 25% discount on Amazon UK right now
Ordered the Spigen as well. Quality charger and cable.
 

kramer987

Senior Member
Dec 22, 2010
312
68
charging rapidly could mean 18w. that's what mine was on several 61 and 65watt chargers.

that's half the speed. do yourselves a favor and test a few chargers before you accept what rapid charging really is.
 

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  • 1
    I think this one does not have PPS.
    1
    If you're not testing your charger with a usb C meter of some sort, you're almost certainly not getting 30W.

    These pixels appear to have an apple style restriction on chargers. Something many people are missing is that not all PPS chargers are created equally. Google specifies 21v whereas most of the pps chargers on the market top out at 11v.

    I've tried 3 different 65W 11v PPS chargers and they all top out at 18-20W.

    I then specifically bought a 21v capable charger and still it tops out at 18-20W.

    I'm extremely disappointed Google decided to take this anti consumer approach. The chargers I have tried are by all means technologically superior to Google's charger in every way and yet this arbitrary restriction means I'm forced to buy Google's if I want 30W charging.

    I can include links/photos/videos if anyone is curious.
    1
    If the Pixel needs exactly 21V at 1.5A or 11V at 3A, the latter of which my Warp Charge 65T should be able to do, that seems to break the promise of PPS.

    The whole point of PPS is the handshake between phone and charger to negotiate the fastest possible speed that both support. The voltage is supposed to be variable, not one or two stepping stones and that's it.
    1
    If the Pixel needs exactly 21V at 1.5A or 11V at 3A, the latter of which my Warp Charge 65T should be able to do, that seems to break the promise of PPS.

    The whole point of PPS is the handshake between phone and charger to negotiate the fastest possible speed that both support. The voltage is supposed to be variable, not one or two stepping stones and that's it.
    Exactly this, couldn't agree more. I've contacted google about it and they simply said "we don't comment on third party chargers" and then they recommended I buy the official one. Piss off lol.
    1
    I did some basic comparison between the Samsung 25w Travel Adaptor with PPS and my other QC/PD chargers
    The Samsung PPS averaged 2.9A charge rate and average temp 23.5c degrees
    For the other chargers:
    USB-C ports managed around 3/3.1A and 29c
    USB-A port managed around 1A and 26c

    So, it seems that whilst the PPS may not give the highest charge rate, the battery stays a relatively cool - around 13% cooler than the 1A rate and 26% cooler than the 3.1A rate.

    For reference the other chargers were:
    Tronsmart U5P (60w multiport charger)
    Q34U2Q CHOETECH USB C PD charger.
    Tronsmart W2PTU with USB-C port