The 490PT+, using patented “conductance testing,” completely analyzes your battery accurately in seconds and prints out the test results on the built-in printer. The tester can be used on any 6 or 12 V lead-acid battery with testing algorithms built in for different configurations of Absorbed Glass Mat (AGM) batteries. The simple-to-use keypad with digital menu screen will allow the user to identify battery voltage, cold cranking amps (between 100-1700 CCA), condition of the battery (Good Battery, Bad Battery-Replace), State of Charge and operates between 0.9-3.0V dc.