I've used this on several car batteries and it's been accurate. It is easy to use and easy to read as well. I had a problem with it when he diagnosed that a 1998 Corvette's battery was only 8.6v, but when the car owner took the battery to the auto parts store, they checked the battery as good, not knowing what the discrepancy was. The instructions are quite difficult to understand but if you are looking for a cheap battery tester I think you need this.
MUCAR CDL20 OBD2 Scanner - Check Engine Code Reader And Diagnostic Scan Tool For All OBD II Protocol Cars Since 1996, With O2 Sensor, EVAP System, And Smog Test Functions
23 Review
Precision Bike Torque Wrench Set for Mountain & Road Bikes - Pro Bike Tool 1/4-Inch Drive with Allen & Torx Sockets, Extension Bar, Dual Readout, and Storage Box
11 Review
Vgate ICar Pro Bluetooth 3.0 OBD2 Code Reader | Scan Tool For Torque Android To Check Engine Light & Car Faults
19 Review
Upgrade Your Car Diagnostics With 16 Pin OBD2 Extension Cable Splitter - Male To Dual Female Y Cable - 50CM
17 Review