Quote:
Originally Posted by wwest
And, if the battery were to perform best at 140F why waste fuel running the A/C to cool it? Anyone know at which point, hybrid battery temperature, the A/C begins cooling the hybrid battery?
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I believe the FEH attempts to use outside air first (opens the rear vent door and activates the fan), to cool the batteries. Only if that fails, then finally activates the A/C coolant loop as its final attempt to keep the batteries cool.