Power Fist 8560401 is a 12V Digital Battery Tester that can perform volt tests, put a 10-second load on the battery, checks the charge, and tests the charging circuit while the engine is running. With a maximum of three tests per five minutes, this device can test batteries with Cold Cranking Amps (CCA) ranging from 200 to 1,000A. The digital LED display shows the voltage in analog, with a maximum of 16 volts DC. This tool is designed to test both charging systems and starters.