How Do I Know If My Car Battery Is Dead?

July 3, 2025

How to Tell If Your Car Battery Is Dead


A dead car battery is one of the most common reasons a vehicle won’t start. If you’re stuck with a car that won’t crank, here are some signs your battery might be the issue:


  • The engine won’t start. If you hear clicking or nothing at all, the battery may not have enough power to engage the starter.


  • Lights are dim or flickering. Weak headlights or interior lights are a classic battery warning sign.


  • Electrical features stop working. If the radio, windows, or touchscreen aren’t responding, your battery could be drained.


  • Battery warning light is on. Many cars will alert you with a dashboard light if there’s a charging issue.


  • You needed a jump start recently. Needing more than one jump in a short time usually means the battery isn’t holding a charge.


  • Visible corrosion. Green or white powder around the terminals can block the battery’s ability to send power.


At Joe’s Slinger Service, we provide professional battery testing and replacement for all makes and models. If your car won’t start—or you’re not sure if the battery is the issue—stop in for a quick check. We proudly serve drivers in communities surrounding Washington County, WI.



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