LONDON — Bye, Lightning cable. Hello, USB-C. Apple is ditching its in-house iPhone charging plug and falling in line with the rest of the tech industry by adopting a more widely used connection ...

For now there are limits on how much power you can push over a USB cable, but later this year USB Power Delivery will allow for up to 100 watts. 100 watts is more than enough to power any high ...

But, while it’s tempting to grab a cable and use the USB port, you might well find your smartphone battery charges very slow, or in some cases not at all. This is because not all USB ports are ...