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Xiaomi Robot Vacuum 4S2P DIY Battery Pack Repair

My Xiaomi Robot (V1) just sporadically shut down after around 20 Minutes of cleaning, stating "Error 14". I looked it up, and Error 14 stands for battery malfunction.

Since i own a lot of 18650 battery packs I'm able to build my own battery from old laptop battery 18650s, so I decided to upload the pinout of the Xiaomi Charging Pad

Solder your 4S cells here and you're good to go!

Published inProduktionenTechTalk


  1. Betrand Betrand

    Whats are the white and yellow connectors ?
    Voltage I guess ? (4 and 12v ) ?


  2. Hi Bertrand, no. I thought they were balance leads, but they are proprietary signal pins, problably temperature sensors or so.

  3. Bertrand Bertrand

    Thank you Florian

    I thkink my board is broken because even after changing the cells I cannot charge the "new battery".
    Rockrobot is saying "battery charging" then move away from the charger few seconds after.

    Any other Ideas ?


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