Mine came with a battery - 5 minute charge - surprisingly good uphill performance - most recently 29, 029 feet up Everest in the Mahalangur Himal sub-range (required the optional Himalaya tires for this jaunt).
Read the manual before using.
Good pricing in the current Black and Yellow Friday sale.
Heck I just help pay for it last week end. Bought a drill motor, small shop blower, and job site light to fit on those 20 volt platforms. Needed some stuff in my newly cleaned out garage with new work bench.