Battery test

2010 PORSCHE PANAMERA
86,000 MILES • V8 • 4WD • AUTOMATIC
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DIVIDES
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Can you do a load test while terminals connected? Or do they need to be removed and why?
Jan 3, 2022 at 4:07 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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CARADIODOC
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Yes, standard procedure is to leave the cables connected when testing a battery in the vehicle. In this manner, the cable connections will be included in the test. Should the battery fail this way, the cables will be disconnected, then the test should be repeated, possibly after charging the battery for about a half hour.

https://www.2carpros.com/articles/car-battery-load-test

https://www.2carpros.com/articles/how-a-car-battery-works

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked
Jan 3, 2022 at 4:25 PM
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DIVIDES
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Thanks.
Jan 3, 2022 at 4:38 PM
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CARADIODOC
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Happy to help. Please come back to see us next time.
Jan 4, 2022 at 5:57 PM