A 50cm steel deck, up to 45-minute run time, a brushless motor and a variable-speed, self-propelled system are just a few of the features that make this mower incredible. The EGO POWER+ 56-Volt battery uses industry-leading ARC-Lithium™ technology to deliver Power Beyond Belief™. All EGO ARC-Lithium™ batteries are compatible with all EGO POWER+ products.