Quote:
Originally Posted by anghrist
I believe that most household oven heating elements are only rated at maximum 40 amps. What you are suggesting would likely have disasterous results.
Personally, I would load and voltage test each cell, then use mathematics to answer the question. If you are building a voltage pack for a vehicle, you will be using a high amperage breaker to safeguard the motor controller.
Ideally, you might look at making all of your cell connectors (bus bars) fusable as well.
I would have to do a bit of calculation to tell you the thickness of copper strip to use for this.
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I am working on an EV but just trying to do an assessment for now. I like the fusible bus bar idea. If the project goes that far I will probably incorporate that idea. I would like to go out on a limb and build a LIPO pack. This was a factory built EV so the engineering is already done but the batteries are are stone age and should be upgraded.
I am individually testing the most questionable batteries but I want to see some serious clean current flow at high voltage before I try the motor and controller.
I will use a light bulb to test the controller before I hook it up to the motor. I will do a preliminary test of the motor with a 12v battery also.