Auto Meter's Battery Tester, No. BVA-230 uses digital pulse load technology to deliver a BCI compliant true load test and can precisely diagnose the battery, starting and charging systems in under 82 seconds. This unit comes AGM optimized for compatibility with nearly all battery types. A convenient USB output allows test data to be displayed as an Excel spreadsheet for nearly unlimited storage capacity and data analysis as well as easy software updates. Featuring a menu system revised to eliminate extra steps, users can easily pick up the unit and use it right out of the box.