Up to 45-minute run time for a single fully charged battery, with the Briggs & Stratton 82V MAX 2.0 Lithium-ion Battery. 21 inches Steel mowing deck with 3 in 1 Design mulch, bag or side discharge grass clippings easily. Smart, efficient load sensing technology power adjusts to meet the demands of the cutting blades. Push button start and a single lever, 7 position height of cut adjustment; Rear wheel size: 10 inch. The Snapper XD 82-Volt 21 walk mower powered by Briggs & Stratton offers a powerful, durable and reliable battery powered tool that delivers on performance. Industry’s first 82V lithium ion walk mower powered by Briggs & Stratton is built for durability with its 21 steel deck. This quiet walk behind mower is easy to use with a single lever height adjustment allowing you to choose from 7 different cutting heights. Vertical storage capabilities saves up to 70% of storage space. Mow through your yard work with ease with this wireless, environmentally friendly walk mower. Maximum initial battery voltage (measured without workload) is 82-volts. Nominal voltage is 72. Run time, charge time and output capacity may be affected by conditions.