Community / Keep It Running

A car battery loses a meaningful share of its cranking power in freezing temperatures right when the engine needs more power to start (cold oil is thicker). A battery that's been fine all summer can suddenly fail the first hard cold snap — that's not a coincidence, it's the cold exposing a battery that was already marginal. Most batteries last 3-5 years; if yours is past that and you haven't had it load-tested, that's a cheap, quick check most shops will do for free before winter rather than after you're stranded.

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