The EGO POWER+ 56-Volt Lithium-Ion 20 in. Self-Propelled Mower delivers the torque of gas. No other cordless mower matches or surpasses the power of gas mowers, making the EGO POWER+ Mower a true gas replacement lawn mower. EGO delivers the Power and performance of gas without the noise fuss or fumes. A 20 in. steel deck, an up to 60-minute run time with compatible EGO battery (available separately) and a variable-speed, self-propelled system are just a few of the features that make this mower incredible. All EGO Arc-Lithium batteries are compatible with all EGO POWER+ products.