Quote:
Originally Posted by JoeT4R
So that would lead me to believe that it is normal for that to happen then. I sometimes have my radio on, sometimes I don’t. I wonder why Toyota designed it this way if that would happen?
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Because the battery still charges the rest of the time you are driving, and it isn't discharging while you are sitting there with those voltages. Why overspec the alternator? That's just more cost from Toyota's perspective.
I have a similar alternator (80A Denso) on my 3s-gte Camry (sadly, not enough the same that the 95/105 options from the Suzuki could swap). I can get it to drop down under 11V with everything on at idle (headlights, brake lights, turn signal, high-current rad fans, etc.). Still charges the battery just fine once above about 900-1000 rpm. My 4Runner isn't quite as bad since it has the clutch fan instead of electric fans.
-Charlie
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'99 4Runner SR5 Auto -
4WD swapped
'89 Camry Alltrac LE 3S-GTE 5spd
'17 Chevy Volt Premier
'16 Honda Odyssey Elite
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