Parasitic Draw On Car Battery
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Pin On Car Stuff 1. unplug all devices from your vehicle and make sure no electrical components are on. turn off the radio, heat or a c, lights, windshield wipers, etc. and close your glovebox and lighted mirror covers. engage the emergency brake, turn your vehicle off, and remove the key from the ignition if you haven't already. It is called a parasitic draw because it continues to drain power from the vehicle’s battery, even though the vehicle is not in use. this can be caused by various electrical components that continue to draw power even when the vehicle is turned off, such as the radio, clock, or power windows. it could also be caused by:.
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How To Perform A Battery Parasitic Draw Test Images And Touch a lead to the negative battery cable terminal. touch the other lead to the negative battery post, completing the circuit within the multimeter, which will display the amp draw. power draw should be under 50 milliamps. this will display as 0.05 amps. if it's higher, that is your parasitic power draw. Is something draining your car's battery? don't pay a mechanic! use a multimeter and these step by step instructions to perform voltage drop tests to isolate. 3. conduct initial test. pop the hood and get in position. if the hood is equipped with a lamp, make sure to rig the pressure switch or pull the bulb to keep it from interfering with your test. Place a multimeter lead on the negative cable. touch the other lead to the negative battery terminal. remember, 1000 mas are equal to 1 amp, and a normal battery draw is 50 ma. therefore, if parasitic battery draw isn’t present, your meter shouldn’t read anything because you’re measuring above scale.
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