It can put out too many volts and destroy the battery but not drain it. The alternator should put out between 13.5 to 16 volts.
13.5 to 15.5 volts
From 13.5 to 15.5 Volts.
It should put of 13.5 to 15.5 volts. The alternator is an 80 amp alternator.
around 14-14.5 volts
With engine running at idle you should read 13.5 to 15.5 volts at the battery.
if the alternator is working properly it should always put out between 13 and 15 volts
13.6 to 14.5 volts with all accessories turned on, depending on temperature.
The alternator should be putting out between 13.5 and 16 volts on a good alternator with the engine running as measured with a DC volt meter at the battery posts. Any less or any more and the alternator is defective of the belt is slipping.
13.5-16 volts DC
13.5 - 14.5
If the alternator is functioning properly you should read somewhere around 13.5 to 15.5 volts DC at the battery with the engine running at idle.