Lipo Battery Guide One About Voltage from Gens ace and Tattu

Flora

Flora

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A LiPo cell has a nominal voltage of 3.7V, and a lipo cell = 1 cell = 1S = 3.7V. For the 14.8V battery above, that means that there are four cells in series (which means the voltage gets added together). This is sometimes why you will hear people talk about a “4S” battery pack – it means that there are 4 cells in Series. So a four-cell (4S) pack is 14.8V, a three-cell (3S) pack is 11.1V, and so on.

3.7V battery = 1 cell x 3.7V= 1S battery

7.4V battery = 2 cells x 3.7V= 2S battery

11.1V battery = 3 cells x 3.7V= 3S battery

14.8V battery = 4 cells x 3.7V= 4S battery

18.5V battery = 5 cells x 3.7V= 5S battery

22.2 V battery = 6 cells x 3.7V= 6S battery

29.6 V battery = 8 cells x 3.7V= 8S battery

37.0V battery = 10 cells x 3.7V= 10S battery

44.4V battery = 12 cells x 3.7V= 12S battery
 
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mozquito1 said:
It's just, revolutions per minute. Not volt.
Click to expand...
kv is the relationship between supplied voltage, and resulting rotational speed, not accounting for the current drawn. So it is true that a 1000K/v motor will rotate at 1000 RPM for every volt (difference of electrical potential between two points, or electromotive force). If you were to apply 15 volts to the motor the motor would theoretically rotate at 15,000 RPM, there are other things that would slow this down, but they are beyond the scope of this explanation.


You may be thinking of the battery capacity, where a motor drawing 30 amps would drain a battery faster than a motor drawing 20 amps, even if the voltage were the same.
 
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