I have just received 4000 mAh LiPo but they rate 0V and under LiPo from Adafruit (https://www.adafruit.com/products/390) they advertize as full (green light) but cannot hold the load charge.
I'm trying to load it with a Li-Ion charger with a voltage control manually but I don't know if that will give anything for one loaded up to 3,980V has the same symptom as above...
As a reference, I have a 2000mAh from Particle.Io that works well to load or support the load.
any idea ?
@ceech the previous one I had were with your board, do you have some knowledge on this issue with batteries having pcm protection on ?
still no luck even with a better one...
found the issue, the polarity was wrong...