In the right corner it's....Sir Gawain! He is nephew to King Arthur, and an honorable knight of Arthur's Round Table. He is very popular with the ladies, and quite charming. He is loyal to his king and queen and keeps his promises.
To charge the battery, the alternator voltage output has to exceed a minimum charging voltage. This minimum charging voltage is 13.8 volts dc across the battery terminals, or at the output of the alternator. A single lead-acid cell starts to charge at anything over 2.25 volts.ince a 12 volt battery has six cells, any 12 volt lead-acid battery needs at least 13.8 volts to start to charge. This voltage will be enough to fully charge or maintain the battery on a trickle charge, but charging time will be very long at 13.8 volts.
Just had alternator rebuilt, what voltage should it be putting out at idle? Discussion in '1994 - 1995 Specific Tech' started by moneypit94, Jul 2, 2010. My alternator had a bad diode in so I had it rebuilt. Now the voltage is consistant but at idle its putting out 13.71 volts at the battery. I thought it should be at about 14.2. Watching the little dumby guage it doesn't move now at all with different rpms so thats good but i still feel its a little low.