Quote:
Originally Posted by 3dplane
It also sounds like your car could use a new alternator if 800 rpm is not enough to charge the battery. Sometimes a diode (or diodes) will fail, killing a phase in the alternator so it will only start charging at a higher rpm!
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I have been measuring the battery voltage .
always with dipped beam or main beam .
I put the fan heating to maximum and turn the thermal window, to have a high consumption, relenti begins to 13.2V and after a few minutes I get to 11.9V , then in gear began in 13,2V and rose to 13 , 7V fast , later he stayed at 14V . climbed no more .
an hour after stopping the engine battery was 12,72V
other prueva with the lights off and it all off, a idle being 13.8V and 14V remains , in gear stays between 14V and 14.2V
I think the alternator works well .