SMART SLEEP MODE FOR MAXIMUM CHARGE: Never fret about a drained battery! Our mower lithium battery automatically enters sleep mode when not in use, preserving its power for the next cut—so you’re always ready to go. LIGHTWEIGHT POWERHOUSE: Say goodbye to heavy lead-acid batteries. Weighing just 3.3 lbs—1/5th the weight of traditional batteries—our lithium cell delivers 3× the cranking current, over 2,500 charge cycles, and up to 24 months of standby life. BUILT-IN BMS FOR WORRY-FREE MAINTENANCE: Equipped with an advanced Battery Management System, this battery guards against overcharge, over-discharge, overheating, and freezing temperatures. 100% maintenance-free—just install and forget. UNIVERSAL COMPATIBILITY: Compatible with Craftsman, John Deere, Cub Cadet, Husqvarna, Ariens, Troy-Bilt, Toro and other brands of lawn mowers, riding lawn mowers, lawn tractors, generators and more. Direct replacement for U1-5, U1-7, U1-9, U1-11 batteries. The new 450CCA lithium battery can cover all previous models with CCA ≤ 450. (110/150/190/200/210/230/245/270/300/320/340/350/400CCA). RUGGED, WEATHERPROOF DESIGN: Built for the outdoors with IP65 waterproofing and an internal shock-absorbing layer, this battery stands up to rain, mud, and vibration, ensuring reliable performance season after season. IMPORTANT DISCLAIMER:Any vehicle models not included in the specified compatibility list are deemed incompatible, including but not limited to helicopters, automobiles, UTV, v-twin, modified vehicle and other non-listed vehicles. Recommended for vehicles made after the year 2000. If you're unsure whether your vehicle is compatible, feel free to contact us. NOTE: If you have any questions related to the product, please feel free to contact us at any time by reviewing the details of your purchase order and visiting our website, which is provided on the packaging box. DOUKAS DKLU1 Lithium LiFePO4 Lawn Mower Battery, 12V 450CCA Garden Tractor Battery, 3Ah Starting Battery Compatible with Craftsman, John Deere, Cub Cadet, Husqvarna, Ariens, Troy-Bilt, Toro