SOURCE: my explorer won't start, It
if the batter has a drain the starter may be at fault the starter can drain a battery with out running i would unhook the battery cables then charge the battery then i would have the starter tested.
SOURCE: my 199 plymouth voyager mini
It could be a bad battery, or it could be a bad alternator, ground wire, dirty terminals, etc.
You need to test the components.
Charge the battery.
Then put a voltmeter across it.
It should read 12.5 volts about.
When you crank it, it should drop to about 10.
If it drops lower, the batter or starter is likely bad.
If it does not drop to 10, then the starter or terminals are bad,
If you stop cranking, the battery should come back up.
If it does not, it is bad.
Once started, then you should see over 13.5 when reved up.
If not, the alternator or terminals are bad.
it sounds like your alternator is bad. take your car to any auto-zone and they will bench test it for free.they will also test your battery. a car battery can run your car for a couple of days depending on how far and and how many time you start it,what electrical load you put on it.hope this helps.
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