hamz9561
Proud Short Bus Rider
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Military Veteran
kV is basically how many 1000 rpm per volt.
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kV is basically how many 1000 rpm per volt.
OK so basically higher kv is a faster motor?kV is basically how many 1000 rpm per volt.
OK so basically higher kv is a faster motor?
OK thanks guys. U guys are great. I think I understand this alot better after reading this thread.Theoretically. Given the same battery, yes a higher Kv will be faster.
(No load speed)
On 2s only:
2200 Kv =16,820 rpm
2650 Kv = 19,620 rpm
3800 Kv = 28,120 rpm.
4600 Kv = 34,040 rpm
The 4600 will most likely only handle 2s.
For 3S you would multiply the above rpm by 1.5.
As such for 4s, the 3800 would not work, as you would multiply the staTed rpm by 2. Most motors will max at around 60,000 rpm.
So on 2s, the 4600 would be the fastest. But jump to 4s and the 2650 is the fastest.
Another thing to consider is that as the KV goes down, torque generally goes up, all else being equal.
Also remember that the higher the kV of given motor, the less torque that motor has.OK thanks guys. U guys are great. I think I understand this alot better after reading this thread.
So for speed I would match my battery and kv size to get close to 60,000r.p.m?
kV rating is for the motor. it's how many rpms the motor will turn per volt.Hello everyone. Nice thread. Learned alot about batteries.
But what is the kv rating?
What does the kv rating equal?
Congratulations on getting in to RC. It is lots of fun sbd there is always something new ( or very vintage ) to learn. I agree ! The C Rating is for high current short bursts. BE CAREFUL; usin higher S ( voltage) rating than recommended. You can burn up stuff including ESCs and motors. Assuming batteries of the same type and rating characteristics, TWO IN SERIES keeps the watt hour the same but doubles the available voltage while TWO IN PARALLEL keeps the same voltage but increases the amp-hour rating ( run time ). When building transmitter packs for my vintage tube radios, I put a bunch of 9vDC alkaline batteries in SERIES to get the low current drain high plate voltages I need for things like my CITIZENSHIP CC TRANSMITTER ( see PIX ).2 cell LiPo is 7.4 volts.
3 cell LiPo is 11.1 volts.
Mah is milliamps.....or the battery's capacity. The C rating is how much your battery is capable of delivering over a period of time. If the C and mah ratings are too low you can watch your vehicle burn.
It's all good! This happens all the timeSorry,. I should have read closer. My stupid mistake. Hope I have not offended.