, - Designed for Milwaukee M18 Battery Users Who Already Own (2.0Ah to 12.0Ah), this fuel transfer pump allows you to save money by utilizing your existing battery. Fuel Transfer Pump for Milwaukee M18 Battery(Not Included) – Cordless 3.2 GPM Automatic Gas Pump Kit for Gasoline, Diesel & Oil with 4 Tank Adapters, Battery Powered, Safe & Fast.