How to Check if a Car Battery is Leaking Electricity?

1 Answers
HadleyMarie
07/30/25 8:06am
Steps to detect car electricity leakage with a multimeter: 1. First, turn off the car's ignition switch and wait for 5-10 minutes in the locked state to allow the car to enter a dormant state. 2. Locate the tightening nut on the negative terminal of the battery, loosen it with a wrench, then gently pry open the tightening block with a flat-head screwdriver, and directly pull out the negative terminal. 3. Set the multimeter to the DC 10A or 20A range, connect the red probe of the multimeter to the car body's grounding wire, and the black probe to the negative terminal of the battery. 4. Finally, observe the reading on the multimeter directly. If the reading is within the normal range, it indicates that the car's electricity leakage is normal.
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