Kobalt 48V Max Mower Runtime Boost Kit

Cut more lawn in less time—and without interruptions—with the Kobalt 48V Max Mower Runtime Boost Kit. This setup pairs a high-performance mower with additional battery capacity, giving you the runtime advantage most standard kits lack. The 48V 21-inch push mower delivers up to 60 minutes of runtime, making it ideal for properties up to 1/2 acre. Its brushless motor and steel-reinforced poly deck provide strong, consistent cutting performance, while the 3-in-1 system (mulch, bag, side discharge) and 8-position height adjustment give you full control over your lawn’s finish. Features like push-button start, LED headlights, and vertical storage make it as convenient as it is capable. The real edge comes from the added power. This kit includes two additional 24V 4.0Ah batteries, extending your total runtime and giving you flexibility to keep working without waiting on a charge. Built-in power indicators and advanced protection systems help ensure long-term performance and reliability. Powered by Kobalt’s dual 24V battery system delivering 48V output, this kit is fully compatible with 100+ Kobalt tools—making it easy to expand beyond mowing. Backed by Kobalt’s 5-year tool and 3-year battery warranties, this kit is built for anyone who wants to finish the job in one pass—not halfway through a recharge.