How to Check for Car Battery Leakage?

[JulietteMarie]

Methods for checking car battery leakage: 1. First, turn off the car's ignition switch and wait for 5 to 10 minutes in a locked state to allow the car to enter a dormant mode; 2. Then locate the tightening nut on the battery's negative terminal, loosen it with a wrench, and gently pry open the tightening block with a flathead screwdriver before directly pulling out the negative terminal connector; 3. Set the multimeter to the DC 10A or 20A range, connect the red probe to the car's ground wire, and the black probe to the battery's negative terminal post; 4. Simply observe the multimeter reading. If the reading falls within the normal range, it indicates normal battery leakage; if the reading is abnormal, it may be due to issues like an alarm system circuit or other circuits causing abnormal leakage.