In article ,
Doctor Drivel wrote:
A 12v drill can have "exactly" the same power a 24v drill. That is not
a problem. To have them last the same amount of time in drilling, the
12v drill will need a bigger battery in A/hrs.

This adds cost as battery cells are expensive and are the main cost of a
drill.

So, as batteries are expensive compared to knocking out motors en-mass,
they go for larger voltage motors and then the batteries do not have to
be as big (or as heavy, which is major point). They are balancing one
against the other to keeps costs down. That is using the same type of
battery of course, say Ni-Cads.

You don't know that identical sized cells come in different capacities?
And don't vary in weight by very much?
Higher voltage drills impress the unwary at the bottom end of the market.
You should be well used to that.

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Dave Plowman London SW
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