Other Parts Discussed in Thread: GPCCHEM
We have been using this fuel gauge on our battery packs for about 2 months / ~100 cycles and recently the state of charge estimations have been very inconsistent and I am not sure what is going on. The types of problems we are seeing are like in the image below - we put a battery pack into our drone system, take it off to fly it and the state of charge estimation changes from 100% to 0% in just 2 minutes (the actual flight time we are achieving is closer to 24 minutes). The temperature of the cells is usually above 40C as we have been operating it in hot environments.
I have confirmed that the current and voltage readings the FG (fuel gauge) is getting are accurate.
What parameters can I look at to figure out what is going on with this device?
Also, what is the required 'relaxation' time the FG to accurately make its measurements?
I have attached my golden image file.
Thank you,
> Andrew
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