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8.4.1.2 Battery Charging The bq25703A charges 1-4 cell battery in constant current (CC), and constant voltage (CV) mode. Based on CELL_BATPREZ pin setting, the charger sets default battery voltage 4.2V/cell to ChargeVoltage(), or REG0x05/04(). According to battery capacity, the host programs appropriate charge current to ChargeCurrent(), or REG0x03/02(). When battery is full or battery is not in good condition to charge, host terminates charge by setting REG0x00[0] to 1, or setting ChargeCurrent() to zero. See Feature Description for details on register programming.
