Quick and smooth running speed with high performance chip set hardwareAccurate test results, using high precision amplifier and calibrated by professional battery testing tool, reading accuracy up to 99%.Wide testing range cover from CCA 100-2000, 3-220 AH.Industry initiative graphical battery voltage real-time monitoring can make analysis of battery data more accurate.Unique battery results can be displayed in percentage and meter mode.Test all automotive cranking l ead acid battery, including ordinary l ead acid battery, A GM flat plate battery, A GM spiral battery, and G el battery, etc.Polarity reverse connection protection, reverse connection will not damage the tester or affect the vehicle and battery.Directly test the battery with loss of electricity, no need to full charge before testing.Testing standards include currently the world's majority of battery standards, CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE, GB.It is used to test a wide range of 12 V batteries (Starting [SLI], Deep Cycled and Marine) of Wet (Flooded), VRLA or Maintenance Free (MF), Sealed Maintenance Free (SMF), Absorption Glass Mat (A GM) and G EL EPB cell.