How can I tell if I have a weak car battery?

Answer

Critical symptoms of a weak car battery include difficulty in starting the vehicle, a check engine light turning on, a low fluid level, corrosion on the posts and a swollen battery case. Age affects battery performance as well.

Car batteries are susceptible to a variety of factors that shorten their effectiveness. Taking many short trips does not always give the battery time to recharge, for example. Extreme temperatures also cause a battery to become weak in many instances. Faulty electrical parts or wiring in the vehicle is another possible cause of a weak battery, as is leaving the lights on.

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1 Additional Answer
Ask.com Answer for: what are the symptoms of a weak car battery
What Are the Symptoms of a Weak Car Battery?
Electrical systems in a vehicle are pertinent for smooth operation of all components. These work through a vehicle's battery and include systems like ventilation, locks, starter, headlights and more. When a vehicle's battery is weak, or fails, it... More »
Difficulty: Easy
Source: www.ehow.com
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