Is it possible to apply 12 volts to the motor instead of 9.6?

Question

Batteries

Looking for advice.
I'm a layman in electronics.
The battery of the Makita 6260D screwdriver failed and the question of replacement arose. Googling it became clear that you need to put li-ion. 3*18650 + dc-dc buck converter + bms, charger 12v 2a.
3 18650 batteries will give a current of 12.6 when fully charged, when discharged 9v.
The screwdriver motor was originally powered by 9.6v.
How will a 3 volt difference affect the motor? Will it greatly shorten the lifespan? Can something be used to lower the current? Should I be worried?

Answer 1

worry

Answer 2

Generally overkill.
But it’s not even worth worrying about voltage, but about how you are going to charge all this goodness - lithium is not the kind of thing that can be treated with disdain.