Battery Test Mode The TB8000 offers 1 battery test mode for testing the voltage of vehicle battery. We recommend that you test the vehicle battery first to confirm that it is in good conditions before charging. Voltage Value Explanation (12V lead-acid batteries) >13.1V Normal volatge; sufficient power 12.1 - 13.0V Normal volatge; medium power 11.6 - 12.0V Low voltage; low power Voltage too low ； possibly damaged Charging Your Vehicle Battery Important: Please do not operate the charger until you confirm the appropriate charging mode for your battery. You can verify the voltage and chemistry of the battery by consulting the manufacturer's manual, or by reading the label on the battery. 1.
Connect the clamps to vehicle battery terminals. Red clamp to the positive polarity (+), black clamp to the negative polarity (-). (Red) (Black)