Schumacher SSC-1500A-CA Ship 'N' Shore 15 Amp SpeedCharge Charger with Battery Clamps Digital meter displays battery charge status and test results Features retractable handle for easy portability System test helps diagnose problems Electronic push-button control switches help select between display mode, charge rate, or battery Accommodates 12-volt batteries only; Clamps are rated @ 75 Amps Not compatible with the WM-12 or EC-25 quick connect cables