The takeaway from all of this is that while this is by no means an exhaustive test, what I’ve found is that any good power bank designed to power tablets will be sufficient to power the Switch. So long as a bank can deliver 5V @ 2A or better, then it can power Nintendo’s console.
It's amazing that the AC Adapter that comes with the Nintendo Switch is actually more powerful than the one that's included with Apple's 12" MacBooks. But, nonetheless, if you want to charge and play, Anandtech currently is recommending RAVPower's 26800 mAh Power Bank. I'm sure that Anker's PowerCore+ 20100 USB-C will also the trick, but then again, I'm a little partial to them since that's all I'm been privy to.
The Anker 40W 5-port Family Sized USB Charger is by far the best charging station to carry with you on layovers, or have available at home when entertaining guests. More often than not, I've been finding myself in either the crew lounge, a hotel room bunking it up (read: saving money) or even around the airport scrambling to find a wall socket. Everyone needs to plug in usually via USB and charge their device so why not share a port? It's also the best way to become the most popular guy sitting at that lonely corner charging up your phone and / or tablet.
- Smart ports, powered by PowerIQ™ technology, intelligently identify each connected device and speak its language - guaranteeing the fastest charge time for EVERY device (up to 8 Amps among 5 ports).
- The size of a deck of playing cards (3.6 x 2.3 x 1.0in) and unibody design for added portability.
- Industrial-grade plastic construction and premium circuitry ensure lifetime reliability.
- AC 100-240V input voltage ideal for international travel.
- Package contents: Anker® 40W 5-Port Wall Charger, 5ft / 150cm detachable power cord, user manual.
At the same time, why not grab a 3-foot USB Lightning Cable that's Apple Certified for only $14.99 so you don't find yourself standing too close to everyone! I grabbed two back in December and it's saved us that claustrophobic feeling. The only issue that I've had is that sometimes the Lightning Connector portion is too thick to bypass some cases but it's awesome nonetheless.