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Thunder Power RC AlignRC
mikenike

Heliman

Ga.

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I am ready to install a motor and esc in my heli. I have a choice between a 12 cell set up and a 14 cell set up. Which would you go with and why. Thank you.

08-08-2016 12:44 PM
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Dan Minick

Key Veteran

Columbus, WI

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Do you currently have 6 or 7s packs? What is your flying style? What model is it going in?

Team Synergy, Team FBL Rotors---Formerly Dyecocker1-------if its not broke...it will be!

08-08-2016 12:51 PM
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RappyTappy

rrProfessor

North Denver, Colorado

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700 high powered high headsped hard 3D? 14 cell no doubt for me. More moderate headspeed and smoother type flying 12S will do. Definitely depends of factors and intended use.

08-08-2016 04:09 PM
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AirWolfRC

rrProfessor

42½ N, 83½ W

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With more than 10 cells, you're already into the higher priced electronics. beyond that, it really doesn't matter.

So long as the motor is selected for the voltage, there is no difference.

Look at the over all package as a finite power source. You have so many watt-hours of energy and can deliver that power just so fast (the "X" rating of the pack).

The difference between 14 and 12 is only 17% so the difference in the required wire guage for the power circuit is negligible. The only reason for using a higher system voltage is to reduce the required wire guage without increasing the I²R losses (heating up the wires).

08-08-2016 04:27 PM
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Dan Minick

Key Veteran

Columbus, WI

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The only reason for using a higher system voltage is to reduce the required wire guage without increasing the I²R losses (heating up the wires).
Well, there is a pretty noticable(huge)power difference. As well as being able to achive much higher watts on less amps. So thats not the only reason to go 14s

Team Synergy, Team FBL Rotors---Formerly Dyecocker1-------if its not broke...it will be!

08-08-2016 04:40 PM
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AirWolfRC

rrProfessor

42½ N, 83½ W

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As well as being able to achive much higher watts on less amps
You may want to brush up on Ohm's Law.

08-08-2016 05:01 PM
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Dan Minick

Key Veteran

Columbus, WI

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Enlighten me

Team Synergy, Team FBL Rotors---Formerly Dyecocker1-------if its not broke...it will be!

08-08-2016 05:15 PM
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AirWolfRC

rrProfessor

42½ N, 83½ W

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Should I start from scratch or do you know something about electrical calculations ?

08-08-2016 05:33 PM
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Dan Minick

Key Veteran

Columbus, WI

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If Amp x Voltage=Watts explain how my statement is false?

Team Synergy, Team FBL Rotors---Formerly Dyecocker1-------if its not broke...it will be!

08-08-2016 06:23 PM
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AirWolfRC

rrProfessor

42½ N, 83½ W

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I didn't say your statement was false. That's your (false) assumption.

I was trying to point out (among other things) that if you increase the voltage (more cells) with the same current, of course, you will get more watts. That's one of the things that Ohm's Law says . . . without loosing any more watts in the wiring.

08-08-2016 06:36 PM
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Dan Minick

Key Veteran

Columbus, WI

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You may want to brush up on Ohm's Law
I am glad we did this dance, for nothing.

Team Synergy, Team FBL Rotors---Formerly Dyecocker1-------if its not broke...it will be!

08-08-2016 08:10 PM
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AirWolfRC

rrProfessor

42½ N, 83½ W

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It's positions like that fail to add content.

08-08-2016 08:17 PM
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Richardmid1

rrProfessor

Leeds, England

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Ide choose 12s simply because packs are easier to come by, esc's are cheaper and a 12s setup can be every bit as powerful as a 14s setup.

Remember your using lower capacity packs in the 14s setup so the higher wattage people claim due to increased voltage is going to be heavier on the packs! If your increasing watt hours then the packs are going to be heavier and your going to need that extra wattage to lug the heavier packs around!

60% of the time, it works every time!

08-13-2016 07:26 PM
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Dan Minick

Key Veteran

Columbus, WI

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But wattage doesnt come from capacity, it comes from voltage.
I find it interesting he still has not chimed in, over a week and still none of our questions answered.
We need to know what size machine and performance he is looking for or this thread is useless.

Team Synergy, Team FBL Rotors---Formerly Dyecocker1-------if its not broke...it will be!

08-13-2016 08:46 PM
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Richardmid1

rrProfessor

Leeds, England

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But wattage doesnt come from capacity, it comes from voltage.
Erm... capacity is in Ah! Wattage = V * A!

I've just noticed you even said it yourself further up!

It's you who mentioned wattage and it's you who I was addressing not the op.

60% of the time, it works every time!

08-13-2016 08:52 PM
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Dan Minick

Key Veteran

Columbus, WI

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Ok, explain what character in that equasion is capacity? Watts? Nope, Volts, nope. Amps? Nope.

Team Synergy, Team FBL Rotors---Formerly Dyecocker1-------if its not broke...it will be!

08-13-2016 08:57 PM
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Richardmid1

rrProfessor

Leeds, England

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Hahahaha

60% of the time, it works every time!

08-13-2016 09:01 PM
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AirWolfRC

rrProfessor

42½ N, 83½ W

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Capacity is Joules . . . or if you like . . . Watt Hours.

3600 Joules = 1 Watt Hour

example . . . a 12S-5000mah pack has a capacity of 60 Watt Hours

08-13-2016 09:08 PM
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Dan Minick

Key Veteran

Columbus, WI

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I must be crazy.

To the OP, if you ever come back and check your thread you started here is my one piece of knowledge I will leave you with.

Higher voltage will get you more wattage with less current.
I doesnt matter how big your wire is, or how large the capacity is. Good luck

Team Synergy, Team FBL Rotors---Formerly Dyecocker1-------if its not broke...it will be!

08-13-2016 09:10 PM
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AirWolfRC

rrProfessor

42½ N, 83½ W

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Higher voltage will get you more wattage with less current.
I doesnt matter how big your wire is, or how large the capacity is. Good luck
Not true . . . With the same motor load,
Increasing the voltage will get you more wattage AND MORE CURRENT.

08-13-2016 09:15 PM
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