500 Amp Adjustable Load Carbon Pile Tester 500 Amp adjustable load carbon pile. . The #710 is a great tool for simulating actual cranking loads. . Tests 12 volt batteries rated as high as 1000 CCA or 160 Amp hour. . Can also test alternators, regulators and starters. . Large dual meters display battery voltage and load current simultaneously during the test. . 500 amp side terminal clamps and heavy duty stranded copper cables. . Meters are color coded for simple pass or fail diagnostics. . Includes temperature compensation chart . One year warranty 710