"David" wrote in message
...
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
https://www.amazon.co.uk/COOWOO-Mult...y-Banks-Black/
dp/B06XFZFZX6/

or

https://www.amazon.co.uk/PortaPow-Mo...ers-Panels/dp/
B01CVMAK2M/.

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 ....

https://www.ebay.co.uk/itm/UNI-T-UT6...981650db1950ba