Hedges
I See Electromagnetic Fields!
- Joined
- Mar 28, 2020
- Messages
- 20,497
Good start, but the corners are what were most likely to be tested (if it was tested for all those functions.)I am going to freeze those cells to -20C, and charge at max rate. Repeat. Then capacity test, or test internal resistance with my cell monitor.
And I do not trust any company or distributor. @fat_old_sun is correct, and the only way to find out is to test it ourselves. Bigbattery has a qualified EE as head designer, and he knows his stuff. I am not sure where they found him, but he seems to know everything. I have thrown a lot of questions at him, and he always knows his stuff.
But yeah, lets test it!
Sometimes the failure occurs under other conditions.
If they do successfully disconnect at 100A, -20C or whatever, repeat until you find the current threshold. And the temperature threshold.
Then test how the battery tolerates being operated just inside the disconnect limits of current, of temperature.
It's your job to be the better fool!
Do you automate test equipment operation? (Labview, VEE, Python, Matlab, Basic, whatever)