I want to know how they aim to improve battery-based soldering irons, since heat requires lots of juice, period.
The only thing we can do is improve the efficiency of that conversion, which just means even faster consumption of batteries.
The only area that can improve is in the tip - better sizing to the job at hand (good luck, this is a portable device, meaning you never really know) and better insulating it so less heat is lost to the rest of the device (and that's been solved for decades in better quality irons).
My higher quality irons have a very small tip, with very little heat lost to the holder.
The other option is carbon tips, which I've had, and work great. But they're fragile.
Edit: ah, they're not talking about efficiency, I misunderstood.
Cool idea, actually. Are they using 18650 batteries?
Edit 2: $250 for the power station? Are they on crack? No thanks. My Weller 120v station was maybe $120, I can run an extension cord. This is what they're competing with, or a Milwaukee cordless. Once Milwaukee sees this, they'll duplicate it, and it's hard to beat the flexibility of removable batteries which are designed for high current.
And yet I still want this.