What is the method for detecting battery leakage?
2 Answers
Battery leakage detection method is: 1. Turn off the car's ignition switch to put the car in 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 remove 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 ground wire, and the black probe to the negative terminal of the battery; 4. Observe the reading on the multimeter. The solutions for battery leakage are: 1. Remove the positive cable of the battery; 2. Wrap the battery in a plastic bag; 3. Check the ignition situation once; 4. Inspect the liquid level; 5. Measure the electrolyte density.
I once encountered a situation where my car wouldn't start after being parked for just one week. Later, I learned how to check for battery drain: First, ensure all electrical devices in the car are turned off, including locking the doors and removing the key. Then, disconnect the negative terminal clamp at the battery and use a multimeter set to the current measurement mode to test in series. Under normal circumstances, the current should be below 50 milliamps when the vehicle is in sleep mode; if it exceeds this, it indicates a power leakage point. Next, like solving a mystery, pull out fuses one by one to test the current changes and identify which circuit is draining power, commonly caused by aftermarket devices or aging modules. It's advisable to perform a simple measurement monthly, especially for older cars, to prevent premature battery failure, saving money and ensuring peace of mind. After that lesson, I developed a habit of promptly addressing any power leakage to avoid the embarrassment of breaking down on the road. Before attempting any work, consult the manual or seek advice from professionals to prevent accidental short circuits that could damage the car. Safety first, and with common household tools, it's easy to handle.
