Looks like they’re back in stock as of today. Just purchased one myself.

Looks like they’re back in stock as of today. Just purchased one myself.

Here’s the easiest way to do it without cannibalizing. Buy a battery pack. Charge that using public chargers, then charge your device. Or if you get one of them better ones charge both at once by charging the battery then charging your device through your battery (some Qi battery packs support this).