OTC Battery Drain Tester Switch OTC7645

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  • Regular price $ 76.05
  • 1 available


Features and Benefits:

  • Finds electrical problems that drain the battery
  • Digital amp meter takes the guesswork out of a complicated job
  • Works on any vehicle with side or top post batteries

ξAttach the test switch between the negative battery cable and the battery, and then road test the vehicle. Next, connect an amp meter to the switch to determine the parasitic amperage draw, and locate the excessive electrical drain on the battery.