Woot offers RYOBI ONE+ 18V Cordless Electrostatic 0.5 Gal. Sprayer (Tool Only), P2809BTL for $19.99. Free shipping for Prime Members.

Product Description:
The RYOBI 18V ONE+ Cordless 1/2 Gal. Electrostatic Sprayer allows you to spray water-soluble disinfectants and other cleaning solutions with the convenience of battery power. This handheld sprayer is compact and lightweight for comfortable, 1-handed operation. Engage the on/off switch to activate the Electrostatic technology or to deactivate it when using chemicals best suited for conventional spraying. You can spray up to 30 tanks per charge with any 18V ONE+ Battery.
The 3-in-1 Adjustable Nozzle Selector allows you to choose from multiple spray patterns, simply turn the nozzle to select between Low, Medium and High. The low setting sprays 65 microns up to 2 ft. away, the medium setting sprays 85 microns up to 5 ft. away and the high setting sprays 160 microns up to 10 ft. away. The RYOBI 18V ONE+ Cordless 1/2 Gal. Electrostatic Sprayer is compatible with Over 260 ONE+ tools. Battery and charger not included. Battery and charger not included Electrostatic spray technology for maximum coverage and precise application Ideal for use with disinfectants, cleaning solutions and most lawn and garden chemicals 3-in-1 adjustable nozzle selector with tool-free adjustment Droplet size: 65, 85 and 160 microns Sprays up to 30 tanks per charge (using 18V ONE+ 2.0 Ah battery or higher) Sprays up to 10 ft. away Translucent 1/2 Gal. tank for easy refills. Compact lightweight design On/off switch activates electrostatic technology.
Compatible with nozzle models ACES12, ACES13 and ACES14 Not compatible with tank models A95102 and A95103 and nozzle models A95501, A95502, and A95503 Part of the RYOBI ONE+ system of over 225 cordless tools Works with all RYOBI 18V ONE+ batteries.

• Electrostatic Technology for Max. Coverage & Precise Application
• Battery and Charger Not Included