This charging board is positioned in the battery pack.

STMicroelectronics STM32L4A6VG Arm Cortex-M4 microcontroller

GigaDevice GD25Q80E 1 MB serial NOR flash memory

Texas Instruments CD3217B13 USB type-C controller

Texas Instruments TPD4S311A USB type-C port protector

Texas Instruments TPS62180 6 A synchronous buck converter

Texas Instruments TPS62160 1 A step-down converter

onsemi FPF2895C current limit switch