RYOBI introduces the 18-Volt ONE+ HP WHISPER SERIES CROSS CUT 20 in. Self-Propelled Lawn Mower, the first ever 18-Volt ONE+ WHISPER SERIES mower, joining our quietest range of products. Combining 18-Volt ONE+ HP technology with RYOBI lithium-ion batteries, this WHISPER SERIES mower is our most powerful 18-Volt ONE+ mower ever. With dual active battery ports, this self-propelled rear wheel drive lawn mower will run up to 45-minutes with the included batteries, ideal for yards 1/3 acre or less. When it is time to start cutting, utilize the hassle-free push button start. With 3-in-1 capability, choose your cut method: mulching, bagging or side discharge. A 7-position single point height adjustment allows users to choose their ideal cut height from 1.5 in. to 4 in. When the job is done, use the easy lift single motion bag removal to dispose of grass clippings. The CROSS CUT multi-blade system provides superior cutting performance, and the 2 additional on-board battery storage compartments allows you to pause your cutting, switch out batteries, and extend your runtime with the two fresh batteries. The kit includes (4) 4Ah 18-Volt ONE+ batteries to fill the (4) total battery ports. This kit also includes (2) rapid chargers that charge all 18-Volt ONE+ batteries in 1 hour or less. When the job is done, utilize the quick release handles to store this mower horizontally or vertically in a more compact space.