Hello,
In bq27421-G1 Technical Reference (sluuac5) “6.4.3 Ra Table Class”, one read that the resistance values are normalized to 0°C. What is its rationale?
We know that battery’s resistance increases as temperature lowers, and heating battery can practically be used to extend the running time of a depleted battery. So why the gauge normalize resistance to 0°C? And what is the formula for converting between normal temperature resistance and the 0°C-normlized values read from the Ra tables?
Hui