The battery itself could be shot, the lead plates inside do wear out over time.
you jump start it and drive it around for 20 minutes and the altinator should charge it
eather the battery has a dead cell or if it is farly new and was dead for a period of time in the winter will kill the battery and cause it not to charge.... or it could be the altinator that is bad and not charging
Have your battery and altinator tested it is possible that one or the other was bad from the store, if they are both ok then you have a drain somewhere in your electrical system somewhere, any shop with diagnostic tools should be able to trace the drain for you.
the battery could have a dead cell, this could cause it to not charge. Have the battery tested to be sure.
could be the alternator. could be the battery, the alternator charges the battery but does not stop the battery holding a charge.could also be a bad starter motor. take alternator off and have it tested. most places will test for free
birde
i think what it is, you need to charge your battery but let it charge for about five minutes and if that doesn't work then you need a different battery
I would suspect the battery has been discharged, is defective, or you have loose or corroded battery terminals. Remove and clean the terminals and if that does not solve the problem charge the battery with a battery charger. If it will not take a charge then replace the battery.
This indicates a no-charge situation. Most likely the alternator is bad.
the battery may be bad,also the starter may be worn out and have a short that drains the battery check that your vehicle doesnt have a remote voltage regulator. and the new alternator may be bad as well
Bad battery? Could be the wiring harness in the charging system. If the replacement alternator was a used part, it might also be bad (yes this has happened to me).
Anyplace that sells batteries can tell you the correct size. Take the old battery with you as you will have to trade it in or you will pay a core charge.