Battery Connector VBATT U1001 HI6421V510 BATT_TS BATT_ID USB_INT_PMU J1501 电池座 VBATT- VCHG_USB USB_INT Main Charger IC BAT1 BAT2 U1602 VBUS BQ25892RTWR Main FPC BTB VCHG_USB_COM J2901 U2902 Sub Charger IC VCHG_USB VBUS BAT1 BAT2 U1604 BQ25892RTWR L1603 VBAT_SYS SW1 SW2 SYS1 SYS2 SW1 SW2 SYS1 SYS2 I2C4_SDA I2C4_SCK GPIO_180_CHG_INT GPIO_177_CHG_EN_N L1604 I2C3_SDA I2C3_SCK GPIO_182_CHG_INT GPIO_007_CHG_EN_N U300 HI3650V100