Originally Posted by 98liftedranger
An auto parts store will check the voltage of your alternator. And the swap is super easy. A few bolts and wires.
Have the auto parts store do a load test on the alternator and the battery.
See if either are bad.
Check the belt for tightness, should be fairly tight.
If neither component is bad and your battery connections are clean (if not clean up both connections) and the belt is tight, then consider going to the next step.
Check for something that is draining the battery or bad grounds (I too think grounds are VERY important).