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Old 04-05-2024, 12:56 AM   #12 (permalink)
S Keith
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Quote:
Originally Posted by redpoint5 View Post
That got me thinking that a very simple test to make sure the contactors are closing on the HV battery is to turn the car "on", and see if the 12v battery voltage increases. It should go to ~13.3v when the car is on, and the traction battery is supplying the DC-DC converter.
The contactors are LOUD. You hear them both quite clearly. Initial charging is to 14.0-14.2V, and it floats at 13.5V.

If you don't hear both, some fault is preventing the relays from closing.
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