I bought one of these back in 2017 when I got my car, and it has served me (still does) quite well. Paid about what they're asking now, and it did not come with the 2nd battery back then. So this is a pretty good deal considering the batteries are most of the cost.
https://www.lowes.com/pd/Kobalt-80-v...ded/5016127275
Blow drying my car after a wash takes about 2/3rds of a charge of one battery and 10 minutes. Blowing my 100' driveway and 50' sidewalk off, plus the street in front of my house uses a little over 1/3rd of a charge over maybe 3-5 minutes.