Amazon.com: AUTOGEN Single-Stage Vacuum Pump 3CFM 20V Lithium Battery DC Inverter 60 microns 1/4HP for Air Conditioner Refrigerant HVAC : Automotive
Pac_King_out on Instagram: “M18 FUEL™ 5 CFM Vacuum Pump, powered by M18™ REDLITHIUM™ batteries, delivers the runtime and speed needed while minimizing the time and…”
VEVOR 5 CFM Vacuum Pump Air Conditioning Vacuum Pump 2 Stage Rotary Vane HVAC | VEVOR US
$1k vacuum pump using a modified M18 battery, tried my own, there's a tab that prevents Milwaukee from being inserted : r/HVAC