Re: The Electric Car LIVES!
Good going, Gav. It's been interesting to watch you gain experience and confidence over the course of building the car!
Make sure to replace the defective battery promptly, it's important to have all of the batteries in your pack have the same discharge experiences, and running with a weak cell will mean that when you do replace the bad battery, the rest of the cells in the pack will have different discharge histories, which will have a ~huge~ impact as the pack ages as a whole.
As for your contactor, are the contacts clean, no oily residue, etc? It would be possible to connect a digital volt meter across the contacts to measure the voltage drop under heavy load and see if there is any resistance showing up that would explain arcing/heating of the contacts. Another problem that is better fixed before it gets chronic
Your'e into the debugging stage now, clean up the fiddly bits and you'll have a reliable daily driver.
I guess you got the heater working? You look nice and warm, and didn't need a heavy coat for the trial run...
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