But but 14.4v is a nominal voltage 14.4v÷1.2v =12 cells
Full
12cells×1.45v = 17.4v
1.45 v is cca fully charged Nimh cell
So 17.4v is almost prefect 4s
The cells I will use are
https://batterybro.com/products/samsung-15q-inr1865015q-1500mah-18aAnd 15A burst I said is what I think the drill will pull Maaax probably much less.
But my question was not obout the cells but can convert this cheap bms from eBay to run more than 2 amps ading an external Fet.
Thanks