This is a litlle OT since it's happening on my daily (2003 Explorer). Latley the car has been dead (periodically) when I go to start it. It will start with a jump. Pulled out the voltmeter and the battery checks out (before jumping it) at 12+ volts. After jump starting it I can see that the Alt is working becuase I'm getting 13-14 volts while running. How do you test for proper cranking AMPs?
Who you calling CABRON? jk I guess it's just time for a new battery but I would be interetesed in learning more. What is a "carbon pile load test"?
Hook it to the battery and turn the big knob to create a load. If the volts gauge starts dropping quickly you probably need a new battery. If it drops a little and holds relatively steady, then you are OK.
It's a too damn expensive piece of shop equipment! They are used to load test and calculate amp hours. Also alternator, regulator, starter.
It used to be three times the amp/hr. rating of the battery for 15 seconds....the battery should hold 9 volts Exp. 70 amp/hr battery would be a load of 210 amps for 15 seconds. They make a simple load tester that uses a coil to supply the load, kind of a one size fits all deal. Milton makes one for 50 bucks or so......Our friends over in China (HF) makes one for 15.
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