Please note that all submissions to the site are subject to the wiki's licence, CC 4.0 BY-SA, as found here

Dyson intentionally reduces battery lifespan and makes them difficult to repair

From Consumer Action Taskforce
Jump to navigationJump to search

Incident[edit | edit source]

Dyson battery packs contain a Battery-Management System (BMS) with a chip that would be capable of balancing the individual cells. The manufacturer, however, has decided to leave out a few inexpensive but essential resistors, resulting in no balancing to take effect. As a result, the battery pack wears out much quicker than it should. [1]

Even if a user charges (using a third-party charger) and balances the individual cells of a battery pack, or even replaces them, the BMS will still not allow the battery to be charged, because its firmware writes 2 bytes into the configuration memory of the microcontroller that essentially bricks the battery pack.

Impact on consumers[edit | edit source]

This incident makes the lifespan of the battery packs of Dyson products significally shorter, forcing people to replace them more often.

Affected product lines[edit | edit source]

Potentially all product lines newer than V6 are affected by this issue, although more information is required to confirm this.

  • V6 and V7 models.[2]
  • V10 and V11 models.[3]

Workarounds[edit | edit source]

Open-source firmware has been written to un-brick the battery pack by overwriting the board firmware for some models using a 3.3V Arduino board.[4][5][6]

References[edit | edit source]

  1. ↑ https://hackaday.com/2022/05/23/fighting-back-against-dodgy-dyson-batteries/
  2. ↑ https://github.com/tinfever/FU-Dyson-BMS?tab=readme-ov-file#compatible-vacuumsbatteries
  3. ↑ https://github.com/davidmpye/V10_Dyson_BMS
  4. ↑ https://github.com/tinfever/FU-Dyson-BMS
  5. ↑ https://github.com/davidmpye/V10_Dyson_BMS
  6. ↑ https://github.com/kumdzio/PIC16LF1847arduino-programmer
Retrieved from "https://wiki.rossmanngroup.com/index.php?title=Dyson_intentionally_reduces_battery_lifespan_and_makes_them_difficult_to_repair&oldid=1655"