Battery won't hold charge, car only starts when jumped

Take it in to have a charge system check done on it, Your alternator is probally shot,

voltage regulator. it may be in the alternator, or remote mounted. ((the alternator can be charging, but if voltage regulator is'nt working then it won't allow voltage to get back to the battery to keep it charged

Depends.
If the alternator is charging, and the battery will not hold a charge, I would suspect the battery.
If the alternator is not charging the battery, I would look at the fuseable links and connections.

sounds like alternator usualy u can take car to autozone an have them test it if batery dosent hold charge and keeps dieing on you it most likely is it any way a good place to start

Sounds like you have a toasted battery or alternator. Have you performed a load test on the battery? Have you tried to charge the battery? First remove the battery and charge it externally from the vehicle. If the battery won't hold a charge, or won't hold a charge of 12 volts, replace it. Once you have the vehicle started, test the operation of the alternator. It should be putting out at least 13 volts back to the battery to keep it charged - if it is putting less than 13 volts or more than 16 volts, replace the alternator.

it sounds like you have blown fuse to the Alternator.. I don't know what car you are talking about but they charging systems vary.. But if alternator isn't getting all the power it needs it won't charge. this should be checked.

good luck

Most likely bad battery. If it runs, but won't start without a jump, means the alternator is working, but battery not holding a charge

sounds like your battery may be bad. take it to autozone to have it charged and tested for hold-charge. takes about an hour or so. and its free.

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Get the battery & the alternator checked (Autozone, O'reilly's or even Pep Boys can do that for free). If the alternator is out or going out, it's not charging your battery - that means everything electrical in your car is now trying to run directly off the battery & draining it (it doesn't take long - especially if the lights or A/C is on). If those check out ok, take it into a mechanic & have them run a diagnostic - you may have a relay out. Good Luck.

change the starter motor.