Normal key-off battery drain (parasitic draw) on a vehicle with many computer and electronic circuits is ________.
a. 20 - 30 milliamperes
b. 2 - 3 amperes
c. 0.20 to 0.40 A
d. 150 to 300 milliamperes
a. 20 - 30 milliamperes
It is normal for a vehicle to have a normal key-off battery drain of 20 to 30 mA (0.02 to 0.03 A). Answer b (2 to 3 amperes), answer c (0.2 to 0.4 A), and answer d (150 to 300 mA) are not correct because they are all much higher than the maximum allowable specification of 50 mA (0.05 A) as stated by most vehicle manufacturers.
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