you cannot.
Install a good generator or alternator.
Yes This Cable Is Connected To A Group Of Cables That Run To The Battery Positive Side, To Allow The Alternator To Charge The Battery.,Do Not Remove Or Install An Alternator Until You Remove The Ground Terminal From Your Battery.
Charge it, replace it,test the alternator,Charge it, replace it,test the alternator,
Any alternator will charge at idle.
alternator is bad
Order of likelihood: 1. Alternator 2. Voltage regulator (probably built into the alternator 3. Battery 4. Wiring and/or connections in charging system. Visit a major chain auto parts dealer and they will diagnose the problem free of charge,. If you need and buy a new battery, they will install it at no additioal charge.
A bad belt, a bad regulator in the alternator or bad brushes in the alternator.
A repair shop will charge around $300, if you install it yourself, it is $139 plus 35 core.
poor charge or intermitant charge from the alternator, also check condition of the alternator belt
You can have the alternator tested free of charge at just about any major auto parts store. By the way, a bad alternator will not "discharge" a battery - the alternator's function is to provide the charge to the battery. If the alternator is faulty, then it is not providing the charge necessary to keep other components from discharging the battery. I had the alternator tested and it was charging. If the alternator has a bad diode, it will discharge the battery. I replaced the alternator and everything is fine.
Charge the battery.
regulator is bad inside alternator