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A Hidden Battery? Watch out!


One of the trickiest parts of electrical system diagnosis is the possibility that a second battery is lurking in the system. The second battery could have a wide variety of purposes, such as functioning as an auxiliary power battery within a Stop/Start system design. But, if you don’t know it’s there, it can really create a diagnostic dilemma. In this great case study, Ryan from New Jersey highlights just such a situation on a 2017 Infinity Q50. Here’s a quick link to the story:

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