We've had universal adapters for ages. You can run a DeWalt battery on a Milwaukee, Makita on DeWalt, etc. I even have an adapter to run my Milwaukee M18 batteries on my Dyson vacuum. You can run a wire to the pos/neg leads on the battery and use it standalone. I use it to power temporary reverse off-road lights on my truck. I see no reason to do this sort of thing. More oppressive regulation from the EU that no one actually wants. Fortunately Milwaukee is a US company as well as a dominant player in the market and will likely not participate in this whatsoever.