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Charging System

Bad Alternator or Dead Battery? How Tembo Tests Both

Replacing the part named by the first symptom can waste money. A battery, alternator, belt, cable or ground fault can produce similar behavior.

Bad Alternator or Dead Battery? How Tembo Tests Both

Replacing the part named by the first symptom can waste money. A battery, alternator, belt, cable or ground fault can produce similar behavior.

Battery symptoms

Heat, age and internal damage reduce cranking capacity.

  • Slow cranking
  • Clicking with dim lights
  • Failure after sitting

Alternator symptoms

The alternator supports electrical loads after the engine starts and replenishes the battery.

  • Battery light while driving
  • Brightness changes
  • Repeated low-battery events

Test the cables too

Voltage-drop testing can reveal resistance that imitates a failed component.

Need a mobile mechanic near Duluth?

Call Tembo at (770) 802-2007 with your location, vehicle and symptoms for current availability and a written quote.

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Diagnostics, maintenance and practical repairs around Duluth. You approve a written quote before we turn a wrench.

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