What is an acceptable amount of measured parasitic current draw with the car off and parked overnight?

The most commonly acceptable amount of measured parasitic current draw with the car off and parked overnight is typically around 0.025A (25mA). While 0.021A is very close to this figure and falls within an acceptable range, it's important to consider what each of these values represents in the context of vehicle electrical systems.

Parasitic current draw refers to the electrical current that continues to flow from the battery when the vehicle is not running. This current might be used by components like alarm systems, clocks, onboard computers, and vehicle control modules.

A draw of about 0.025A aligns with manufacturer recommendations since it suggests that the vehicle's systems are drawing minimal current, which is ideal for preventing battery depletion over time. Values significantly higher than that can lead to battery drain and start-up issues.

In contrast, values such as 0.150A are significantly higher than what is considered acceptable and would be indicative of a potential electrical issue, leading to quick battery depletion. The other options, while numerically close to common thresholds, are less aligned with optimal conditions for parasitic draw when parked. Thus, while options like 0.021A are nearly acceptable, 0.025A better represents a standard threshold used