12V and 21V power lithium drill is the same as you
Even if the current is not large enough to be supplemented by voltage, they cannot simply say whether their power is the same, depending on their capacity to withstand the voltage.
Not the same, the lithium battery charge and discharge rate of a lot of levels, the general 12V drill in 10C power in general about 5C, but there is one point at the power output power, because the output voltage is higher 21V
