Is battery still good?

Buix893

Buick = $$$
Joined
Jul 2, 2009
I have a die hard gold, about 4 years old and was wondering how one could tell if the battery is toast? It charges fine, Shows around 12.6 volts when fully charged and when in the car around 13.6 volts..this sound normal?
 
You can load test a battery to tell you it's condition, yours sound normal.
 
Stop by any AutoZone, Advance or O'riely, they'll be happy to load test it for you. "usually" if a battery takes and holds a charge for several days it is good. If it goes dead after a few days, it's usually because of some sort of draw when the engine is off or the alt is not charging it properly when running.
 
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