DESIGN & DETAILS: Supplies 2.5 Hours of Consistent Power Before Needing A Recharge Attaches Directly To Tripod For Portability & Convenience Digital Display For Easy To Read Remaining Battery Life Includes Charger For Easy Recharge Light Weight At Only 4 lbs. SPECS: 150 Watt Inverter (Peak 225 Watts) 40 Amp Hour Battery COMPATIBLE: Power Alley 360 Lite Baseball Machine Slider 360 Lite Machine Power Alley Pro Machine BaseHit Machine Power Alley 360 12" Softball Machine