They also make adapters for big names. The Chinese ones get a little more involved... But there are Chinese knockoffs.
All use basically same inside batteries (forget the common model number).
I use then to cross over DeWalt-Milwaukee-Craftsman(IIRC is Craftsman/Stanley/B&D)... B&D/Stanley is also DeWalt.
Only Makita stands alone... From the date of this:
Also... Great mods online, YouTube if you can secure a 3D printer...
It's all coming outta China...
CORRECTION: Hilton too...