Brand NEW Kobalt 40 volt battery lawn mower. 6.0 Ah Battery and charger included. The Kobalt 40-Volt Max Brushless Motor Lawn Mower provides superior performance without the noise, mess, and fumes of gas. The 40V mower offers versatility with 3-1 cutting modes along convenient push button start. Offering up to 60-minutes of cut time, the 40V mower has you covered.