SOLAR BA5 100-1200 Cold Cranking Amps Electronic Battery Tester Test 12-volt batteries from 100-1200 CCA, operating range from 7-15 volts Test multiple battery types, including conventional, AGM, gel cell, spiral wound, and deep cycle batteries (with a starting rating) LED indication of battery and system pass or fail (as applicable), plus derived reading for the battery tested Easy to use--the device guides you through each step in the testing process Bright 4-digit LED display is great for bright- or low-light settings