Charging a Dewalt battery with one of the cells removed

Is there a specific reason for this? Does the BMS not allow the batteries to be wired in series due to power flowing in and out of the batteries? It probably wouldn’t be too difficult to add some sort of separate cable for discharge. What would the BMS do if I tried to wire two batteries in series? Would they just quit and not provide any voltage?

BMS will limit current at a number much too low.

No, it has no control over that.

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