What is causing my trailer fridge battery to drain?

There could be several things that are causing your fridge battery to be drained prematurely:

  • Fridge Controllers
  • Fuel Level Sensors
  • Interior Trailer Lighting
  • Telematics/Tracking Systems

These are otherwise known as ‘Parasitic Draws’.

If a refrigerated trailer is sat idle for extended periods, these parasitic draws can slowly drain the battery.  This could cause the battery to enter deep cycle. Your fridge battery will require a jump start which will reduce its life span over time.

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