The HEINPRO cordless lawn mower is designed to be compatible with Milwaukee M18 18v lithium-ion batteries, for 48-11-1811 48-11-1815 48-11-1820 48-11-1822 48-11-1828 48-11-1835 48-11-1837 48-11-1840 48-11-1850 48-11-1852 48-11-1860 48-11-1865 48-11-1880 48-11-1890, etc.
