USB-C charging with the Apple USB-C adapter?

[mrobi]

Papa Yoyo wrote:

Nice list. Are you talking about the RavPower AC adapter or power bank? The power bank looks good to go.

AC Adapter.

AFAIK no powerbank supports USB-PD and 20v charging.

[Papa Yoyo]

mrobi wrote:

Popo Yaya wrote:

Nice list. Are you talking about the RavPower AC adapter or power bank? The power bank looks good to go.

AC Adapter. AFAIK no powerbank supports USB-PD and 20v charging.

The ravpower specs are listed as… 5v/3a  9v/3a  12v/2.4a  15v/2.1a  20v/1.5a

Isn’t the cube i7 12v?

[Wylver]

The DC input is 12V.

But the USB-C input with power delivery can go up to 20V

Unfortunatly I don’t know the input charge the cube i7 book is compatible to over USB-C.

But nevertheless I still think the Anker Powercore with power delivery (which is not longer beeing sold) is the only power bank capable of charging the tablet at the moment.

Someone else on this forum has ordered the RavPower powerbank and is going to test it, but I don’t have high hopes because if it were truly capable of power delivery output (instead of input) they would cleary market it that way.

[mrobi]

Yeah I think you may be able to charge some powerbanks with USB-PD, but no of them will give out USB-PD. If powerbank says that it can deliver out something like 5A, it usually turns out that it has multiple ports and one port max out at 1.5-2A.

I think the main problem is that there is multiple competing standards like QC and USB-PD and some vendor specific and none of them is compatible with each other. But everyone of them can have same connector USB-C. And knowing how carefully Chinese design this stuff result can be non-functional or electric fire.

[Papa Yoyo]

There are lots of reviews of the ravpower powerbank saying that it can charge macbooks, ipads, laptops, eg…

Not all USB-C chargers are equal – need to read the small print. This charging protocol can use anything between 5 and 20 volts and be called a USB-C charger. But my ASUS Transformer Pro 3 needs a 20v supply. I tried an Anker one which maxed out at 12v and was no good. So this is the one to get if you want to be sure of USB-C charging, as it does the full range.
It is quite a brick, but packs a real punch at just under 100Wh capacity, so although not tried yet it should do two charges of my ASUS 39Wh battery. And it does it quickly, with a 30W output – equal to many mains chargers.
Strangely, it doesn’t come with a USB-C to USB-C cable but then many USB-C chargers don’t. I recommend getting a good quality cable which will handle the higher currents used for USB-C, otherwise the cable will throttle the charging. I have found a cable made by SPECLE is fine – the makers claim it is made to the full USB-C spec.

[Wylver]

It does not matter if the RavPower powerbank can charge other devices with usb-c because to be able to charge the cube i7 book it specifically needs to have usb-c power delivery.

I’m not saying the Ravpower can’t charge usb-c, I’m just saying it won’t charge the cube i7 book as long as it doesn’t have usb-c power delivery output.

[nipaph]

i’ve bought an aukey usb c charger 54w from amazon, and it recharge very slowly, but in any case the tablet doesn’t discharge while connected.

[Wylver]

https://www.amazon.com/AUKEY-Charger-Delivery-Foldable-MacBook/dp/B01LX063QN/ref=sr_1_1?ie=UTF8&qid=1478659041&sr=8-1&keywords=PA-Y7

https://www.amazon.com/AUKEY-54W-Universal-Port-Charger/dp/B00UV4HCL0/ref=sr_1_1?srs=9359766011&ie=UTF8&qid=1480353990&sr=8-1&keywords=54w

One has power delivery and one doesn’t…

You said you bought the 54W charger? Wrong one, maybe it damages your tablet.

 

There are a couple chargers in this forum that are already tested and work with the cube i7 book, you should stick to those.

Ivoler 75W

Anker 60W

Apple Macbook usb-c 29W

[nipaph]

thanks for the info.

anyway, the one i bought is this

https://www.amazon.it/gp/product/B01DVTVEOM/ref=as_li_qf_sp_asin_tl?ie=UTF8&camp=3370&creative=23322&creativeASIN=B01DVTVEOM&linkCode=as2&tag=nipaph-21

[Wylver]

Still the wrong one, it does need to say explicitly that it supports power delivery.

I checked the Aukey homepage and the one I linked before is the only one that Aukey has with PD.

[mrobi]

This has PD: https://www.amazon.it/Anker-Caricatore-Premium-PowerPort-Delivery/dp/B01C847NUK/ref=pd_sim_107_2?_encoding=UTF8&psc=1&refRID=8WMVNM4FF07A2HQQ4PC6

 

 

[Wylver]

Yeah, that’s the one I mentioned above and I have bought for myself.

[Jason Dessenberg]

I have an Amazon branded 3 port hub. If I were to purchase a USB Type C to USB cable. Would I be able to charge my tablet via the hub?

[juan Gonzalez ruiz]

Hi, I would like to consult you, since I just purchased a cube i7 book, and the charger it brings, it sounds a buzzing scary, I would like to buy a charger but to charge it through the usb 3 c port, what alternatives do I have? thank you very much.

[alevan]

When you buy a PD charger from amazon, for the best compatibility, look if it says in the title or description the New Macbook or Macbook Pro. If in the description or the title are only phones and tablets (like LG, Nexus, iPhone, iPad, Samsung Galaxy), the while it supports USB Power Delivery, it does only charge at 5V at most. Which will damage the tablet, as the Core M requires a 9V-12V battery.

Those chargers that have green USB ports are almost certainly not compatible, as they are Qualcomm Quickcharge ports. Likewise if there are more than 3 usb ports on the charger with low Wattage.

 

This charger for example works fine with the Cube i7 Book: https://goo.gl/aUmMd2

 

Meanwhile these just damage it if not in the short, then in the long run:

https://goo.gl/AKK9d6 – this can output 9v-12v, but not in 1.5A. If you use the tablet plugged in, in the long run it will damage the charging circuitry and the battery.

https://goo.gl/h20B04 – while this is a 30W charger, it charges at a maximum of 5V through USB PD (or 20V through Qualcomm QC, but this will not jelp us). It will definitely damage the tablet.

Also bear in mind, that if you charge over USB, you NEED to use a cable with an 56k ohm Pull-up resisor. If you use a cheap alternative, the device could take more power through the charger than it can whistand, and it will fry.

A google engineer tested a bunch of cables, but if you buy from amazon, most of them will have this in their title or description, like this: https://goo.gl/BisLLm

 

As the charger and the cable is as important at this new standard as the quality of the PSU in PCs, do not buy cheap and unreputable brands.

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