Auto Meter BVA-230 Intelligent Hand Held Electrical System Analyzer Tests 6V and 12V flooded and AGM batteries rated between 100-1600 CCA. Tests starting/charging circuits, discharged batteries, and detects bad cells. Automatically stores results of last 150 completed tests for easy review. Wirelessly communicates to optional test results printer via infrared or outputs to PC via AC-12 cable. Unlike competitor models, Auto Meter testers only require a single technician to run a full electrical system test due to our on-board 120 amp True Load cell. This eliminates the need to apply inconsistent loads, such as headlights, fans, etc. which makes our products easier to use and more accurate. English and Spanish language menus and test results. Charging system test results measure alternator current output, voltage regulation, and diode ripple delivering a pass or fail result.