Dyson battery lifespan reduced by design and difficult to repair: Difference between revisions
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==Incident== | ==Incident== | ||
[[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.<ref>https://hackaday.com/2022/05/23/fighting-back-against-dodgy-dyson-batteries/</ref> | [[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.<ref>https://hackaday.com/2022/05/23/fighting-back-against-dodgy-dyson-batteries/</ref><ref>https://en.wikipedia.org/wiki/Battery_management_system#Balancing</ref> | ||
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.<!-- Lacking reference that confirms this information. --> | 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.<!-- Lacking reference that confirms this information. --> | ||