The Greenworks 48V 21” Brushless, Cordless, Self-propelled Lawn Mower comes with (2) 24V batteries combined, for 48V of power and up to 45 minutes of run-time. The mower easily propels up steep inclines, and comes with 7 different height positions, and a built-in LED light to adapt to you and your lawn-care needs. The versatile 4-in-1 mowing system includes a rear bag, mulch, and side discharge options along with a turbo button for maximum power. The brushless motor delivers more power, quiet operation, longer run-times, and extended motor life, while overcoming gas-motor issues by reducing noise, vibration, and eliminating fumes! The Greenworks 24V platform powers over 100+ indoor and outdoor products, including lawn mowers, blowers, string trimmers, chainsaws, power tools, and more! The 24V lithium-ion battery provides 20% more power and 35% more run time while delivering fade-free power with no memory loss after charging. The outdoor power equipment allows you to tackle up to 1/4 acre with the available batteries. USB ports are integrated into the batteries, making it a portable charger for phones, tablets, and other compatible electronic accessories.