You haven't seen this test! Milwaukee VS Makita VS DeWALT VS Bosch VS Metabo - YouTube
Amazon.com: AuthFrank BS18DL Battery Adapter converts for Bosch 18V Lithium Battery to for Dewalt 18V/20V Lithium Battery DCB184/DCB181/DCB182/DCB200/DCB201 etc. : Tools & Home Improvement
DAYATECH Rechargeable Cordless LED Work Light, 3500 LM, 25 W Compatible with DEWALT, MILWAUKEE, MAKITA, BOSCH, Black&Decker, Porter Cable, STANLEY Power Tool 18-21V Lithium Ion Battery(Light Only) - - Amazon.com
300w Power Inverter Sine Wave Inverter For Makita/dewalt/milwaukee/bosch 18v Lithium Battery To 110v/220v Power Bank Converter - Battery Pack - AliExpress