Practical for those batteries that are difficult to access. Shows the battery’s charge level simply and clearly. It comes with a 2-year warranty.

Part no. 40-133


Checks charge status of hard to reach batteries, M8 8.4mm eyelet

Indicator is the easiest way to monitor the charge in your battery. An accurate reading for your battery is displayed two hours after you’ve used your vehicle.


  • Red: means the battery charge is below 12.4 V. It’s definitely time to charge the battery.
  • Yellow: means the battery charge is between 12.4 and 12.65 V. It’s time to start thinking about charging the battery.
  • Green: means the battery charge is more than 12.65 V. OK! No need for charging.

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