#define BQ_REG_FCC			0x12
#define BQ_REG_TEMP			0x06
#define BQ_REG_SOC			0x2c
#define BQ_REG_VOLT			0x08
#define BQ_REG_NAC			0x0C /* Nominal available capaciy */
#define BQ_REG_AI			0x14

#define BQ_I2C_BUS                 3
#define BQ_I2C_DEFAULT_ADDR        0x55

//unsigned short bq_battery_read_percentage(void);