Well, the wait is over, Switch is here, and I got my grubby hands on one as soon as I could. So of course I started of by playing BotW, and within 2 hours the console was empty, so I plugged it to the wall using a standard 5volt phone adapter and a USB to USB-C cable, only to find out the console still drains faster than it can charge that way.
I've tried the in box adapter in handheld mode and that works perfectly, but none of the half a dozen phone adapters lying around our house can charge the Switch quick enough while playing.
So, is 5 volts just too little? Do I need a USB-C to USB-C cable instead? Or do I need to spend 30 bucks on a second proprietary adapter? Or are there certain phone adapters that DO work?