BT02 Battery and Alternator tester


Regular price $39.95
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The BT02 is a battery & alternator tester designed to save time on electrical issues, it gives a instant diagnosis.

With all the features inside an automatic, you cannot use it wrong.


  • For 12V battery
  • Test the condition of your battery and alternator
  • Connect the crocodile clip to battery terminal and check alternator or battery
  • Easy to use


  1. Connect the red crocodile clip to the positive (+) battery terminal
  2. Connect the black crocodile clip to the negative (-) battery terminal

Battery Check

  • Switch on the vehicle lights for 1-2 minutes
  • Disconnect the battery from the vehicle
  • Wait 10 minutes
  • Connect the tester

Alternator Check

  • Run the vehicle with all electrical equipment off (lights, radio...)
  • Run the vehicle with all electrical equipment on (lights, radio...)
  • The green LED should light on both tests meaning the alternator is GOOD
  • A red LED indicates the alternator is over charging : must be controlled
  • No LED light indicates the alternator may not be charging : must be controlled