SOLAR 3001 Wheeled Jump Starter / Battery Charger / Auto Air Compressor Delivers air without the need to connect to ac power Automatic 10 amp battery charger to charge onboard battery 150 PSI Air Compressor with Automatic Shut-off Switch and hand-free clip on chuck 5' retractable jumper cable leads Requires Group 31 Battery (not included), starting capacity based on user-installed battery