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Old 01-07-2010, 10:31 PM
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JamesDean JamesDean is offline
Electrical Engineer
 
Join Date: Apr 2005
Location: NE Ohio
Posts: 5,038
Results of tests round #2 measured from alternator output:


Battery - Car Off - 12.28v
Key On - Car Off - 11.50v - No GP Light On
Glow Plugs verified to be running, voltage @ GP #1 ~11.05
Cranking Voltage - 10.4v
Started Idling - 13.14v -
Started Revving - 13.70v peak
Only Blower High @ Idle - 12.55v
Only Blower High @ Rev - 13.42v
Blower High + Lights @ Idle - 12.13v
Blower High + Lights @ Rev - 13.33v
Blower High + Lights + Rear Defrost @ Idle - 11.87v
Blower High + Lights + Rear Defrost @ Rev - 12.68v
Blower High + High Beams + Rear Defrost @ Idle - 11.69v
Blower High + High Beams + Rear Defrost @ Rev - 12.36v

It does not seem to cope well with loads. Not sure if thats an indicator of the battery or the alternator.

I have another SD, its battery is currently on trickle charge, it has not been driven since snow hit. (not a winter car)
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