Parasitic Load Testing

Parasitic Load Testing:

Battery Storage Vs Parasitic Load:

Small current drains, called "parasitic drains," constantly draw current from the battery even with the ignition switch in the OFF position. These parasitic drains can discharge a battery in 4-6 weeks depending on the battery's state of charge and when the vehicle went into storage.

Normal parasitic current drain for the Saturn vehicle is between 8.75 - 9.5 milliamps. Remember, when checking for parasitic current draw, take a look to see what types of equipment the customer may have had installed on the vehicle. A cellular phone, anti-theft system, or any device added, that requires constant voltage to retain a memory, will draw current at all times. So take these added accessories into account when testing for parasitic current drain.