Ancel Battery Load Tester BST200 100-1100 CCA Digital Car Battery Analyzer Detect Battery Bad Cell Directly Test 12-volt batteries from 100-1100 cold cranking amps, operating range from 6-18 volts. Test auto cranking lead acid battery, including ordinary lead acid battery, AGM flat plate battery, AGM spiral battery, Gel battery. Detect bad batter or cell directly. Tests multiple rating systems: CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE. Easy to use and pocket-sized: quick and accurate test result display in just 3 seconds. The tester's size makes it convenient to keep at arm's reach. Fits right in your toolbox! Large white backlit LCD display for optimal viewing in all lighting environments. Clear arranged keypad and menu-driven operation make it extremely easy to use.