MY BATTERY KEEPS DYING

old post.
ok, no head lights, that means the battery is dead.
head lights are hot all the time, (safety) if they are dead
diagnosing HL is simple to do.
voltmeter to battery, oops 10v. bad. charge it.

many times leaving lights on, kills the battery for ever.
camel and straw deal.

1: dead battery , not 12.6v.
2: fuses blown. (in engine bay fuse box)
3: battery lugs corroded real bad.

you have 2 problem a) alternator b) battery fix it.
see the diagram attached.
God bless you

Check alternator voltage output, might be low. obd2 scanner

most likely a engine or body ground could have been damaged or left of altogether by trans guy.

Have you had the battery tested, and have you cleaned and tightened the cables ?

Look for a blown starter fuse or fusible link in your underhood block. Also look for what made it blow.

new alternator required

Check and verify that your alternator is charging properly, if you hook a multimeter up to your battery you should see a voltage between 13-14 volts on the charging side, if this is the case your alternator is good, next i would check the resting voltage of your battery that should be tested with the car off and it should be between 12-12.5 volts, if all of this checks out i would start looking into the parasitic draw on your battery while your vehical sits overnight, make sure all your courtesy lights are going off, your glove compartment light any under hood lights things like that if any lights like this are remaining on you will have a dead battery day after day because the light or draw on the battery keeps draining it of its charge....

I have the same exact problem. First thing I did was replace the battery. Still having problem. Alternator charges then, an hour later the battery is dead. I was at a stoplight and suddenly the air amd radio quit for a couple of seconds, the volt meter hit bottom, then kicked back in and everything worked again. Turned the car off, started it back up. Parked, went inside, came back out, battery dead. New battrery, Good alternator, could it be the regulator shorting out? do they have regulators anymore?  

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