I was looking at power boards in a hardware shop yesterday and noticed that a) many of them had USB sockets, and that b) the ratings for the USB sockets varied widely, from 1A to 3A. If I wanted to ...
It's easy to plug too many devices into too few sockets, particularly when using extension leads and USB ports. Here's how to plug in devices and charge phones and laptops safely Overloading your plug ...
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