* 1. BST500 battery tester is a more advanced tool with the capability to test automotive, marine, motorcycle, boat, and truck batteries. Designed for 12V battery testing, it nevertheless can be used for both 12V and 24V starting and charging systems. * 2. This battery analyzer can test 12V lead-acid batteries, including regular flooded, AGM flat plate, AGM spiral, gel, and deep-cycle batteries. It covers all battery rating Standards such as CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE, GB standards. * 3. It’s fast and accurate, displaying battery parameters in about 2.5 seconds to advise you of a battery’s full/low or charge/replace status. * 4. The unit is housed in a rugged casing for easy hand-holding. It’s lightweight and has a backlit display screen for clear reading under any lighting condition. * 5. Its built-in printer uses standard thermal printer paper, so you can conveniently attach a printout to a work order, share it with your customers or build a preventative maintenance program of record keeping.