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What are some signs of a bad battery?

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Old Jun 5, 2016 | 01:30 AM
  #1  
Bull Steed's Avatar
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Default What are some signs of a bad battery?

I have a battery I suspect has some problems, but I cant prove it.

How will an unhealthy/rerminally dead battery act? What will the resting voltages be? What should it be after a set period of time? Why does my CTEL charger go straight to "charged" indication when I put it on there? How do I test it outside of a car? It's heavy!
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Old Jun 5, 2016 | 01:52 AM
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Default Re: What are some signs of a bad battery?

The battery's only real job is to start the car. The alternator takes over after the car is started. It keeps the battery charged. Normally when a battery starts to go it starts leaking and the corrosion builds on the positive terminal.
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Old Jun 5, 2016 | 01:54 AM
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Default Re: What are some signs of a bad battery?

Originally Posted by holmesnmanny
The battery's only real job is to start the car. The alternator takes over after the car is started. It keeps the battery charged. Normally when a battery starts to go it starts leaking and the corrosion builds on the positive terminal.
Ahh, cool.

Could a battery in a car with a bad alternator somehow get ruined?
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Old Jun 5, 2016 | 06:35 AM
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Default Re: What are some signs of a bad battery?

Originally Posted by Bull Steed
Ahh, cool.

Could a battery in a car with a bad alternator somehow get ruined?
Yes.

Do you have the capability of taking the battery to a local parts store and have them load test it for you?
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Old Jun 5, 2016 | 10:09 AM
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Default Re: What are some signs of a bad battery?

Originally Posted by kab00m
Yes.

Do you have the capability of taking the battery to a local parts store and have them load test it for you?
Well, I have a load tester I can use if I can find it..
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