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wrong soc in bq27410-g1

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I'm using bq27410-g1 in a handheld device using single cell LiPo battery. The bq27410-g1 has been configured and calibrated using a EV2400 and bqEVSW v0.9.75. I use internal temperature sensor and BAT_DET I2C command instead of BIN input.

After a full charge, the handheld device is disconnected from the charger and switched on, and starts discharging the battery. While discharging, the SOC value received from the gauge is correct until 40-50% is reached, then SOC value sometimes drops 15-20 units, and then sometimes recovers and increases suddenly those 15-20 units.

After 5 discharge-charge cycles, Ra tables have been updated, but SOC behaviour below 40-50% has not changed.

Device's current consumption is not constant, it's mean current is about 200-300mA with long 1Amp "spikes" for 10-20 seconds.

Best regards.


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