TIL that my Milwaukee heated jacket battery adapter works for my dewalt heated jacket. Battery adapter for my dewalt jacket broke a year ago and haven't used it since. I am in
Milwaukee Men's Small M12 12V Lithium-Ion Cordless TOUGHSHELL Black Heated Jacket Kit with (1) 3.0 Ah Battery and Charger 204B-21S - The Home Depot
Milwaukee Men's Large M12 12-Volt Lithium-Ion Cordless Gray Heated Jacket Hoodie Kit with (1) 2.0 Ah Battery and Charger 306G-21L - The Home Depot
Milwaukee Heated Jacket Battery Test Extravaganza! - YouTube