News for hackers. Stuff that matters.

A comment on What the Heck Is Happening at Apple?. Parent comment

Re:What the Heck Is Happening at Apple? by dpark on Monday October 31, 2016 @03:09PM (#12839931)
> Ridiculously fast charging

How much faster are we talking? I haven't seen any numbers with this claim, nor any justification. There are fast charging systems on the market already with Micro-USB. Qualcomm says their quick-charge solution (used in the new Pixel phones) works with A, Micro, C and others.

https://www.qualcomm.com/products/snapdragon/quick-charge/fa...

> plus the ability to use the same charger for both your laptop and your phone.

I'm not sure that's really all that compelling. It's nice, but I don't think it's nearly as nice as, say, my dock working.

[ Parent | on HN ]
Re:What the Heck Is Happening at Apple? by ianburrell on Monday October 31, 2016 @04:25PM (#12840622)
The Pixel doesn't use Qualcomm's proprietary QuickCharge but standard USB Power Delivery. It can negotiate charging at 9V, 2A (18W). Legacy USB can charge 5V, 2.4A (12W), and regular Type C can charge at 3A (15W). Scaling with power, 15W is 25% faster than USB and 18W is 50% faster. The higher voltage is supposed to charge empty batteries faster.

The iPad Pro seems to support quick charging with the Lightning to USB-C cable and MacBook 29W USB PD adapter. And charges about twice as fast (2.5 hr vs 5 hr).

[ Parent | on HN ]
Re:What the Heck Is Happening at Apple? by dpark on Monday October 31, 2016 @06:23PM (#12841506)
My mistake. I was reading an article that claimed that the Pixel was using Qualcomm's tech.
[ Parent | on HN ]