https://www.homedepot.com/p/Milwauk...-XC-Battery-Pack-0970-20-48-11-1850/326520830 Milwaukee M18 FUEL PACKOUT 18-Volt Lithium-Ion Cordless 2.5 Gal. Wet/Dry Vacuum and M18 5.0 Ah Lithium-Ion XC Battery Pack (0970-20-48-11-1850) on sale for $189. Shipping is free, otherwise select free ship to store where available.