At home — an external charger, given its benefits, and the luxury being at home affords.
On the road — a light with an internal charger that needs nothing else, except the wall adapter and cables already along for the ride to charge the phone and tablet.
No desire to lug along more stuff like a battery charger, even something as small as an MC1. Nobody will find me with one of those precious electronic accessories bags seen on Amazon. All the stuff I carry (multi-port adapter, cables) fits into a clear PP divided case that can be had at a Japanese dollar store. If the TSA gets nosy, the fact that it’s clear makes it easier to screen.
Am willing to concede to bringing a portable battery pack, but in my case, it’s a PB2, which can serve double duty.