Why is my car battery always dead?

I had purchased a used car and now its Battery always dead. my friend suggest me for cheeking it at "Delta Auto Care". Any body have any other suggest

I had purchased a used car and now its Battery always dead. my friend suggest me for cheeking it at "Delta Auto Care". Any body have any other suggestion.

or:I had purchased a used car and now its Battery always dead. my friend suggest me for cheeking it at \"Delta Auto Care\". Any body have any other suggestion.


or:Put a charger on it and see if it will take a charge. If it takes a charge and holds it, it's a good battery. Next you measure the voltage with the engine running. It should be 14 to 15 volts, going up when you idle faster. If not then you have a failure in the charging circuit and the clerk at the auto parts store can test that for you.


or:If battery is new that is fitted in your car, after that battery gone dead then it's alternator problem. Alternator not provides sufficient current to battery for charging. So kindly check your alternator.

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