Product Description POWER : High torque motor delivers gas performance PERFORMANCE : Premium cut quality with high vacuum lift RUN TIME : Auto-switching 2 bay battery system for 2X more run time DESIGN : Self-propelled cruise control technology INCLUDES : (2) 40V max XGT Lithium-Ion 4.0Ah batteries, charger, 21" mower blade, mulching plug, and side discharge chute XGT XGT is a new 40V | 80V max system of cordless equipment and tools. XGT outpowers, outsmarts, and outlasts the rest.