Quote:
Originally Posted by teoman
Were you able to test the voltages?
I am talking to the chinese seller to work on my new order. And he sent me a picture saing new caps 650 usd, refurbished ones 135 usd. (Asking are these the ones)
So they are not new (despite the guy claimed they were in the beginning).
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So, measured the caps and one of the end caps is a dead short. That's definitely not a great way to fail, a shorted cap will cause the other caps to go up in voltage and have a cascading failure. Eventually the whole thing becomes a short across the positive and negative terminals on the battery. I was lucky enough to actually be looking at the pack when it failed, and pulled it off when I saw the LEDs on the other balancing boards start to get brighter.
I wonder what caused the failure?