On June 8, 2015 at 13:11, amirm said...
These are high efficiency switching converters so the heat generated is pretty minimal. Touch a standard USB charger and likely it will also be quite cool.
Yet usually above room temperature, so yes, and no.
By the way, I read the reviews for the Hubble on Amazon and there are reports of not being able to charge the Samsung S5 phone:
[Link: amazon.com]"I bought this so that I could charge my Samsung Galaxy S5 and my partner's iPhone 5s via USB.
The iPhone charges OK.
No comment as to whether it is as fast as the Apple charger -- this is usually an issue with Apple users.
The Galaxy S5 does not charge at all from the USB ports on this outlet. It does charge using the same cable and the power adapter in the power outlet. I have tried 2 separate USB cables in each USB port.
I have a USB power supply that won't charge my Galaxy 4, so okay. However, not charging from the power adaptor, but only from this outlet, means the 120VAC part of this is somehow defective, but only for Galaxy S5 phones! That is simply an amazing claim.
This is not a suitable for non iPhones in my experience."
"Like the title says, it won't charge the galaxy s5. I tried two different usb cables and two micro usb cables."
This sounds strange. The S5 charging cable has, presumably, USB A on one end and USB micro on the other. Micro cables ARE USB cables, so two of each requires some splanation!
"I can confirm this - do NOT purchase if you have to charge a Galaxy S5."
