Following on from my brief foray into solar power, I noted that it wasn't easy to measure the power output of the USB adapter.
Amazon offers, for instance
or
I'm sure some people here have used such things. Does anyone have a recommendation?
Should I be looking for USB 3 capability for the few USB 3 devices I use (none of which are chargeable).
Cheers
Dave R
I use one of these with a dummy load ....
As fare as I can see usb3 is just the speed. Brian
I saw Big Clive using one of those in a video someone posted here.
Is that a recommendation?
USB 3 can also provide more power.
As standard, USB 2 can provide up to 500mA; USB 3 up to 900mA and special versions for fast charging connected devices, up to 1500mA.
SteveW
The latest USB 3.1 (IIRC) can supply a lot more than that and at a higher voltage than 5V.
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