120w powerbank made from a Dyson vacuum battery pack. Dyson do not balance cells and their bms bricks pack when they get out of balance. Replace bms, remove two sony vct4 cells.
Batterie for aspirateur à Main 21.6V 2Ah 2.1Ah 3Ah 2.5Ah Compatible avec VTC4 VTC5 VTC6 Compatible avec Dyson V6 Series DC62 (Color : for Sony Cell 3Ah) : Amazon.fr: Cuisine et Maison
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