What Is A Battery Drain Test. Using a digital multi-meter this test is carried. With the key out of the ignition let the vehicle sit for 15-45-mins to allow time for all computers to enter sleep mode.
Switch your Digital Multimeter to DC AMPs. Luckily you can usually find. Use a multimeter and these step-by-step instructions to perform voltage drop tests to isolate.
AC is usually shown as a symbol and DC shown as a - symbol.
Connect the red wire to the 10A20A input port on your multimeter. If your vehicle is drawing power from the battery and all of the lights and other electrical components are off you might have a parasitic battery drain or draw. A parasitic battery drain is just something that consistently and continually drains your battery. Locate the wire or component causing the drain by leaving the test light connected to the battery cable and post.
