Darn...no over-volting the Monster

[lutach]

Originally Posted by suicideneil

It seems to be a bit of a common mis-conception that higher voltage = more insane power and speed, and it simply isnt the case. Higher voltage can mean that, certainly, but what it really means is a slower turning motor can be used that leads to longer run times, lower temps, and cheaper batteries. The only downside I can find is the need for more space on the chassis for batts maybe, and a higher voltage capable charger maybe too- no biggie.

There are good and inexpensive chargers out there already. I charge my 2 5S Thunder Power packs in parallel using my AF 109. The current electric conversions are the ones putting limits on the batteries used. I showed suicideneil my chassis designs and they'll be made for HV application. You can easily fit 12S in them and if you think 12S is too much, just use 6S. It will be a well balanced chassis.

[johnrobholmes]

I would be hard pressed to qualify HV as better, but I can certainly recognize the benefits of 1/2 the amp draw and need for less battery capacity at a given power level. Whether or not a given motor runs more efficient at higher voltage/lower KV is beyond my knowledge, and I would love to hear what Mr. del Castillo has to say about it.


I illustrate the point though, in one of my rigs I run a 10t brushed motor. It takes a 4200 mah 15C pack just to bear the load. If I drop down to a 19t it spins half the speed, I can use twice the voltage, and a 2100 15C pack nets the same runtime and punch. Batteries cost the same, but the whole system does run cooler. 6s lipo on a 19t will be pretty fun for a rock racer.