Even though the tank is just 0.13 gallons, the battery is the standard Ryobi USB Lithium 4V/2Ah affair, meaning it can spray 20 tanks -- or over 2 gallons of liquid -- with one battery charge.

The 12V battery is integrated into the tool and charges via USB. The downside to that is the rotary tool won't last as long as its 18V counterparts, plus the battery is not interchangeable.

The Ryobi USB Lithium Rotary Tool can be purchased (on its own) from The Home Depot now for around $60 — at this size and weight and with the versatility of a removable battery, it's well worth ...

Also in a bundle is the Ryobi USB Lithium Rotary Tool, which costs $59.97 from Home Depot and includes a wrench, 15 accessories, and an accessory storage case -- as well as a USB lithium battery ...

More Last-Minute Ryobi BOGO Deals at Home Depot RYOBI ONE+ 18V Lithium-Ion Starter Kit, 2.0Ah Battery, 4.0Ah Battery, Charger for $99.00 and pick a free power tool See It ...