How Many Volts Should A Good Alternator Put Out. Stress test the alternator - Place a load on the alternator by turning on the headlights the radio and the air conditioning. How many volts should a stator put out.
At 2000 it should be 36 VAC 182. The voltage should read a minimum of 13 volts. The voltage should remain high with these circuits on.
At idle if you check the battery it should read anywhere between 134-144 volts.
When the engine is running the alternator will typically put out between 138 to 148 volts. The specs for the inverter should tell you how many amps it can handle and how. Still its perfectly normal for others to see the alternator not charge at all intermittently. The voltage should read a minimum of 13 volts.
