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Maxus eD3

Maxus eDeliver 3. There are different battery models:

  • 35kWh / 52.5kWh NCM by UABC "United Auto Battery System Co.,Ltd" (model year 2020, 2021)
  • 50,2 kWh LFP by CATL "Contemporary Amperex Technology Co., Limited" (model year 2022+)

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Battery overview~

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Left to right, Low voltage connector, service disconnect switch, high voltage connector.

Low voltage wiring~

Apart from the HV plug, the BMS has two plugs "A" and "B", A seems to be responsible for charging, B for everything else. Service manual wiring attached, (PT CAN = PowerTrain CAN):

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Other BMS connections image

The battery has an interlock on Connector B that needs to be shorted. image

How do I connect the battery to the Battery-Emulator?~

TODO

  • Connector B: Pin 3 to Pin 2 to satisfy interlock detection

High voltage wiring~

Cable for heater?

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CAUTION

Working with high voltage is dangerous. Always follow local laws and regulations regarding high voltage work. If you are unsure about the rules in your country, consult a licensed electrician for more information.