dewalt announcement today.

wrote:

Yes, and at some point the PCness filtered down from Mt. Olympus.

It was all I could do well. ;-)
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wrote:

They aren't the only ones. This is very common with LiIon batteries. Assume 4V/cell. They charge at about 4.1-4.2V and discharge down to about 3.6V. 5x4.1V~ V. 5x3.6V~V. Pick your poison. You can't have half a cell, so 18V and 20V batteries *must* be the same thing. In fact, I have a bunch of 12V Bosch batteries. The older ones say 10.8V and the newer ones, 12V. Other than the label, they're identical.
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On Tue, 21 Jun 2016 15:43:26 -0400

it is all clear now
are they going up in voltage to increase power output and because the batteries are lighter or just for more power
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On 6/23/16 3:25 PM, Electric Comet wrote:

All the arguments about battery pack voltages aside, higher voltage can be used to produce more torque. Motors have windings which all have some amount of resistance. This resistance results in a voltage drop and with a higher available voltage, the percentage of 'wasted' power due to the voltage drop is less. Motor torque is proportional to current. A higher voltage also lets you increase the available motor current and/or allows for more windings in the motor.
One early example of this 'voltage war' is people who upgrade old VW bug 6 Volt electrical systems to 12 Volt. The starter motors are a lot more peppy with more available current.
-BR
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On Sat, 25 Jun 2016 08:35:27 -0600

lighter batteries now means they can keep the weight in control but still provide more power
my old dewalt was on the heavy side