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I replaced my main battery last year with an Interstate AGM manufacture date was 2021. Ran pretty good in the summer but now that the truck is sitting in the cold a lot I notice that it doesn't crank as strongly. I hooked up my scanner and get 7.83-7.90 volts when cranking. That seems pretty low to me, anyone else see a higher voltage when cranking in negative-degree weather?
Do you mean have the battery load tested outside of the vehicle or is there a dealer procedure to load test the vehicle? I read no other fault codes on other modules, could it be a faulty battery?
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
