What is the normal range of battery drain with ignition off?
What is the normal range of battery drain with ignition off? What is the normal range of battery drain with ignition off? Assuming the car is in prefect order, the only drain on the battery, when the ignition is off, is from ancillary systems. Does anyone have an estimate of what the drain is from: What causes a car to draw power from the battery? Learn more... If your vehicle is drawing power from the battery and all of the lights and other electrical components are off, you might have a parasitic battery drain (or draw). Luckily, you can usually...