zlacker

Not to stan for Dyson, but they're not a vacuum-cleaner company, they're a fire-prevention company. Every decisionmaking process they undertake is going to have that at the top of the list. They don't want a lot of batteries in the field that are being stretched to the limits of their operating lives.

Of course, the company's best response to that concern would be to make the batteries easily replaceable, including by third-party products. But that's where job #2 comes in: make sure the consumer has to buy a new Dyson sooner rather than later.

>>Camper+(OP)
Then why design batteries with built-in cell balancing support, and remove the resistors to disable the feature in the last moment?

You can safely say that if the battery pack's total capacity drops under 75%, disable it, or detect dead cells and take action.

Disabling life prolonging features while having a full MCU and a nice battery IC on board smells fishy to me.