Cobra's rm43sp80v is a self propelled rear roller mower powered by two 40v batteries providing up to 100 minutes mowing time. With a 43cm 17 cutting width, the rear roller battery mower will leave a traditional striped finish to small to medium sized lawns. The twin samsung 5ah lithium batteries work in unison to deliver an impressive 80v of mowing times and the self propelled powers up slopes and over uneven ground. The walk behind cordless roller mower has a 50 litre grass collector and 7 cutting heights ranging from 17 75mm.supplied with 2 x 5ah batteries and 2 x fast chargers.specificationpower 2 x 40v samsung 5ah lithiummotor brushlessdrive self propelledcutting width 43cm 17 grass bag capacity 50 ltrrear rollercutting height 17 75mm, 7 heights of cutweight net 29kgwarranty 2 year domestic