Hot answers tagged battery
If you got a low point discharge, you battery is damaged. Some chemical processes can not be reconverted from that point. If you drive around some time, you battery get warm and have a little bit more charge then cold. That could be enough to start the card once again. You don't loose anything if you try to charge you battery. Maybe you are lucky. Otherwise ...
It could simply be the battery needs a complete charge, or it could be the battery or a parasitic draw. You need to have the battery tested to start. You can see my post here on how to test a battery, or most auto parts stores will do it for you.
If you have started the engine and you are getting 13-14.5V, the alternator is working and your problem would be most likely battery. Your local auto-parts store will usually have a heavy discharge battery tester to prove or disprove the servicibility of the battery before laying out money to replace it. In passing you should not assume the cables are OK but ...
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