I have been using the BQ34z100 over the past year with good success. During use it has seemed to always provide pretty accurate SOC numbers. Just recently it has gotten cold, -10 deg C, and several of the systems we have been using are now reporting odd SOC values. They jump around very dramatically also as load is applied and removed and same for if charger is applied and removed.
I looked at the discharge curve for the batteries that we are using, and I can see that they have a pretty drastically different curve at the temperatures that we are now operating in.
Where should I begin in trouble shooting this issue?
Thanks,
Matt
