Hi,
I am using the bq27421 on my custom board. It is connected to a 150 mA/H Lithium-ion battery. I only configure the bq27421 design capacity and termination voltage parameters.
I am experiencing the following scenario:
1. board is powered on and used. SOC starts from 100% and goes down to lower values. reported voltage goes down from 4.2v to lower values (for example 3.8v).
2. board is powered down. before power down the bq27421 is entered into hibernate state. while in power down, the only is the only current consumer (10-30 uA).
3. after waiting 30 minutes, I power up the board.
4. SOC value returned is 100%. The battery voltage doesn't change at all.
This means that I get wrong SOC value in that scenario.
Someone knows what is the reason and how can this be solved?
thanks!
