Do the newer usb c laptops charge via motorhome usb socket?

[Metamorfosis]

I have my eyes on a huawei matebook D

This laptop has a newer style usb C port but as well as data transfer it can handle power in and out so rather than a conventional charger and proprietary charging interface the matebook is charged via the usb C port too utilising a 65w 3 pin plug charger and usb C cable. Up to now in my van I have managed to avoid using an inverter for anything and I already have fitted a 18w QC3.0 usb socket for my power hungry mobile phone and tablet. Will this work for the laptop with a usb 3.0 to C cable albeit at a much slower charging ?

Anyone using one of these type of usb Charging laptops already in their van care to comment?

 

[sallylillian]

I have a Dell XPS 13 7390. It will not charge from a standard USB socket (with the appropriate USB A to USB C cable or widget) There is simply not enough power. The charger for mine is quite small and I simply bought a couple of extras. One for the travel bag and one for the van. Unfortunately you do need 230 vac for them, but I have a big inverter so not concerned. Looking at the Huawei it seems that its charger is rated at 65w and similar to my Dell. So I suspect the answer is no. There is only one way to tell! Unless someone on here has one.

 

[Metamorfosis]

I have a Dell XPS 13 7390. It will not charge from a standard USB socket

Ever tried with a QC 3.0 socket? I understand there is a QC 4.0 standard at 27w as well that supports usb-pd (whatever that is!) so I wonder if that may be compatible albeit at less than half power.

 

[sallylillian]

No I have not as I have a working solution and the investment in it so no need. However i will be interested in the outcome of your investigation.

 

[monzer]

My pixelbook is type c and hardly takes a charge from the normal sockets in my van. I asked on here and someone recommended one of these....

Amazon product ASIN B07H4M4N5V
It did the trick but it did take a big draw out of my leisure batteries. Fine in the summer with a bit of solar topping up the batteries.

^{_{Subscribers  do not see these advertisements}}

 

[tonyidle]

Phones & tablets USB C - I haven't noticed any change using the USB 12v adaptors I've always used.

 

[Lenny HB]

Even the phone I bought a couple of weeks ago charges at 6 amps. It will charge from a 2 amp socket but takes 3 hours compared to its normal 55 min.

 

[Gellyneck]

I have my eyes on a huawei matebook D

This laptop has a newer style usb C port but as well as data transfer it can handle power in and out so rather than a conventional charger and proprietary charging interface the matebook is charged via the usb C port too utilising a 65w 3 pin plug charger and usb C cable. Up to now in my van I have managed to avoid using an inverter for anything and I already have fitted a 18w QC3.0 usb socket for my power hungry mobile phone and tablet. Will this work for the laptop with a usb 3.0 to C cable albeit at a much slower charging ?

Anyone using one of these type of usb Charging laptops already in their van care to comment?

You've got a 230v \ 65W charger connecting to a USB C port however what is the voltage output of this? Most laptops charge on 18v - 21v input. Will your output supply this?

 

[Metamorfosis]

I think as monzer pointed out you it would seem you need a car charger adapter with usb pd socket. His one is 30w but I found a 45w one here which I would assume charges even faster
Amazon product ASIN B0852B6FG2
Regarding drain on the leisure batteries surely this is far more efficient than inverting 12v to 230v and then using the proprietary plug charger to convert back down to 19v usb c.

 

[tonyidle]

You've got a 230v \ 65W charger connecting to a USB C port however what is the voltage output of this? Most laptops charge on 18v - 21v input. Will your output supply this?

USB is a standard and outputs 5v. The current available depends on what USB version it is and whether it is a dedicated charger or simply a data port on an appliance. But it's always 5v. So anything using a USB port as a charge port is safe and designed to connect to a USB charger. It will only attempt to draw the current it needs so a connection to a low current port may mean it will be slow to charge. A port with a higher current availability may allow a faster charge.

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[Metamorfosis]

As an aside why on earth aren't modern vans fitted with qc3 usb sockets which are backwards compatible? Almost everything you buy now requires more than 2 amps so you end up having to buy 12v car charger adapters unless you don't mind waiting more than half the day until your tablet is charged (in the absence of an inverter and proprietary charger).

 

[Lenny HB]

USB is a standard and outputs 5v. The current available depends on what USB version it is and whether it is a dedicated charger or simply a data port on an appliance. But it's always 5v. So anything using a USB port as a charge port is safe and designed to connect to a USB charger. It will only attempt to draw the current it needs so a connection to a low current port may mean it will be slow to charge. A port with a higher current availability may allow a faster charge.

I have one USB charger that outputs both 5v and 9v it came with my Huawei tablet.

 

[tonyidle]

I have one USB charger that outputs both 5v and 9v it came with my Huawei tablet.

Someone had to mess with the standard! Are those outputs supplied via a single USB socket? I ask because the 4 standard USB pins are fully utilised for +/- & data with the data pair unused on a charger.

 

[Lenny HB]

Someone had to mess with the standard! Are those outputs supplied via a single USB socket? I ask because the 4 standard USB pins are fully utilised for +/- & data with the data pair unused on a charger.

Yep, just a standard single USB socket.

 

[Gellyneck]

USB is a standard and outputs 5v. The current available depends on what USB version it is and whether it is a dedicated charger or simply a data port on an appliance. But it's always 5v. So anything using a USB port as a charge port is safe and designed to connect to a USB charger. It will only attempt to draw the current it needs so a connection to a low current port may mean it will be slow to charge. A port with a higher current availability may allow a faster charge.

As you've already seen a USB-C charger can \ does operate at various voltages rather than just 5v hence my question to OP.
As an example here's a 3rd party charger for a multitude of brands and outputs 5 different voltages (5 \ 9 \ 12 \ 15.3 \ 20.3 \ 20v).
Amazon product ASIN B07QQS2FBD
I know it's US Amazon but .....
If the OP's Matebook is using a non5v-12v charging voltage will it actually charge with an input of this? I don't know. A check against the current 230v charger output would be sensible to confirm current charging voltage.

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[tonyidle]

As you've already seen a USB-C charger can \ does operate at various voltages rather than just 5v hence my question to OP.
As an example here's a 3rd party charger for a multitude of brands and outputs 5 different voltages (5 \ 9 \ 12 \ 15.3 \ 20.3 \ 20v).
Amazon product ASIN B07QQS2FBD
I know it's US Amazon but .....
If the OP's Matebook is using a non5v-12v charging voltage will it actually charge with an input of this? I don't know. A check against the current 230v charger output would be sensible to confirm current charging voltage.

A charger can have any number of voltages available as long as they don't appear on a USB socket. I'm surprised by Lenny HB s revelation as USB is a standard and not just a kind of connector. For voltages other than 5v to be on any of the pins endangers the entire principle - one point of which was to ensure chargers using that socket could be used to charge anything that could be plugged in.

"All USB cords carry the same 5V, regardless of if it's got a 30-pin head or a microUSB plug, whether it's first-party or third. ... Because they have consistent, standardized voltage, USB chargers need another means of putting more power (in terms of watts) into larger gadgets faster "

and

USB - Wikipedia

en.wikipedia.org

 

[Lenny HB]

A charger can have any number of voltages available as long as they don't appear on a USB socket. I'm surprised by Lenny HB s revelation as USB is a standard and not just a kind of connector. For voltages other than 5v to be on any of the pins endangers the entire principle - one point of which was to ensure chargers using that socket could be used to charge anything that could be plugged in.

"All USB cords carry the same 5V, regardless of if it's got a 30-pin head or a microUSB plug, whether it's first-party or third. ... Because they have consistent, standardized voltage, USB chargers need another means of putting more power (in terms of watts) into larger gadgets faster "

and

USB - Wikipedia

en.wikipedia.org

They can't use the data pins as that could blow up devices, at a guess I suspect that devices that use the higher voltages send a trigger signal to the charger to enable it.

 

[tonyidle]

They can't use the data pins as that could blow up devices, at a guess I suspect that devices that use the higher voltages send a trigger signal to the charger to enable it.

Either way very odd - and certainly outside the USB spec. If it only supplies 9v when your device is connected how do you know it's actually supplying 9v?

 

[autorouter]

USB has come a long way since the USB 1.0, 5V 500mA take it or leave it. There's higher power at 5V, and 'adaptive' charging like QC3 which uses the data connections to communicate with the device, and for compatible devices will increase the voltage to 9V or 12V for a considerable boost in charging power. But plugging an old USB 1.0 device in is still fine.

USB C takes it to another level. Standard USB C will charge at 5V, up to 3A. A USB C 'PD' (= Power Delivery) port will communicate with the data pins, and can output up to 20V 5A (yes, that's 100W) to power large items like laptops. As a bonus, it's 2-way, so for example a battery power bank can be charged and discharged through the same USB C socket.

You can get plug-in USB C PD adapters for cigarette-lighter-type sockets.

For what it's worth, my daughter has a USB C laptop, and she says it can charge from a standard USB plug, slowly, if the laptop's not powered up and working. While working, the charge gradually goes down, but slower than if not plugged in.

 

[olsgreen]

Yes, my 13" MacBook Pro charges slowly on the 3.0a USB-C sockets I've got.

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[Gellyneck]

A charger can have any number of voltages available as long as they don't appear on a USB socket. I'm surprised by Lenny HB s revelation as USB is a standard and not just a kind of connector. For voltages other than 5v to be on any of the pins endangers the entire principle - one point of which was to ensure chargers using that socket could be used to charge anything that could be plugged in.

"All USB cords carry the same 5V, regardless of if it's got a 30-pin head or a microUSB plug, whether it's first-party or third. ... Because they have consistent, standardized voltage, USB chargers need another means of putting more power (in terms of watts) into larger gadgets faster "

and

USB - Wikipedia

en.wikipedia.org

USB Power Delivery spec changed in 2012. These links are possibly more relevant to the discussion.

USB-C - Wikipedia

en.wikipedia.org

"A device with a Type-C connector does not necessarily implement USB, USB Power Delivery, or any Alternate Mode: the Type-C connector is common to several technologies while mandating only a few of them."

USB hardware - Wikipedia

en.wikipedia.org

Devices can request higher currents and supply voltages from compliant hosts – up to 2 A at 5 V (for a power consumption of up to 10 W), and optionally up to 3 A or 5 A at either 12 V (36 W or 60 W) or 20 V (60 W or 100 W).

 

[sallylillian]

76zedfour I bet you wished you hadn't asked

 

[tonyidle]

76zedfour I bet you wished you hadn't asked

No - it's interesting this stuff (to me).

Gellyneck - thanks for that. I was quoting the original spec. I'll have to find out how the request is implemented now .

 

[Gellyneck]

...... thanks for that. I was quoting the original spec. I'll have to find out how the request is implemented now .

Hope it ain't via Hermes or it will never arrive!

 

[sedge]

Hope it ain't via Hermes or it will never arrive!

Bit daft really in the 21st century expecting an ancient Greek deity to ever make an appearance ......

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[Metamorfosis]

Getting back to my original post......
If I was to plug one of these into a standard 12v port is the van wiring capable of providing the power it promises to deliver to a power hungry device such as a usb c laptop? I assume it would otherwise the adapter wouldn't have been developed but thought best to ask the Sparkys amongst you.
Amazon product ASIN B0852B6FG2

 

[TheBig1]

Getting back to my original post......
If I was to plug one of these into a standard 12v port is the van wiring capable of providing the power it promises to deliver to a power hungry device such as a usb c laptop? I assume it would otherwise the adapter wouldn't have been developed but thought best to ask the Sparkys amongst you.
Amazon product ASIN B0852B6FG2

It should be fine, as most 12v sockets are fused at 10a and above in a few cases, like on the dashboard

 

[Metamorfosis]

Ah, by saying that you have reminded me that those little 150w inverters work from a 12v port so proving they are easily capable of powering this 63w kiwibird adapter. Cheers big1