How to Test for Car Battery Drain with a Multimeter?
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Method for testing car battery drain with a multimeter: 1. Rotate the multimeter's knob to the current measurement setting; 2. After selecting the appropriate range, insert the red probe into the corresponding jack; 3. After setting up the multimeter, turn off the engine and all electrical devices, then lock all doors; 4. Open the hood, disconnect the negative battery terminal, connect the multimeter's red probe to the vehicle's grounding wire, and connect the black probe to the negative battery terminal post. Observe the current reading displayed on the multimeter. A multimeter, also known as a volt-ohm-milliammeter (VOM), multitester, or combination meter, is an essential measuring instrument in power electronics and related fields. It is primarily used for measuring voltage, current, and resistance. Multimeters are categorized into analog (pointer) and digital types based on their display method.