https://www.homedepot.com/p/RYOBI-ONE-18V-Lithium-Ion-4-0-Ah-Battery-2-Pack-with-18V-Cordless-Handheld-Electrostatic-Sprayer-PBP2005-PSP02B/318807626?=&irgwc=1&cm_mmc=afl-ir-10451-483420-&clickid=xZ9RrV1WsxyLTeGwUx0Mo38KUk
