Xiaomi MiJia QiCycle Folding Electric Bike Teardown

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battery management system

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The board is packed with lots of resistors. What sticks out are these components:
An ATMEL MEGA 328P Battery Management MCU
Ablic (formerly Seiko Instruments) S-1142B33H-E6T2U 200 mA LDO regulator
FL12.000 12 MHz quartz crystal oscillator
On the flip side we find these:
Magnachip MDU1931 single n-channel trench MOSFET (x4)
RS2M rectifier

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Xiaomi MiJia QiCycle Folding Electric Bike Teardown

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