Freewing F14 underpowered

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4 years 7 months ago #20717 by MikeSeale
Replied by MikeSeale on topic Freewing F14 underpowered
I'm sure I've pressed send on my phone before and it didn't send...annoying.

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4 years 7 months ago #20736 by Wingman1962
Replied by Wingman1962 on topic Freewing F14 underpowered
Hello Mike. I have had a look at internal resistance of these lipos, one is reading 6-8mOhm and the other is 10mOhm. I have measured amps/watts for each edf. one is reading 62amps and 1650 watts and the other is 68amps and 1700 watts. I've tested the throttle points the way you said and full throttle is being reached with a little movement left on the stick or if you push the stick to full throttle the engine note does not drop if you back it off one click. I did notice the wiring on my amp meter got pretty warm.
Thanks John

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4 years 7 months ago #20737 by MikeSeale
Replied by MikeSeale on topic Freewing F14 underpowered
Those resistances look about right. Attached are the results for my four 6s batteries that are over 2 years old and have had between 100 and 200 cycles each during that time. These are Zippy Flightmax 30C batteries. If we made up an adaptor you're welcome to try one of my batteries to see if you get the same Watts as your Turnigy batteries. If the Zippys are more powerful that would identify that your Turnigys are the culprit even though the numbers would suggest that the batteries are fine. Where do you live?

I know this is a really silly one, but I assume the fans are on the correct way around?
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4 years 7 months ago #20738 by MikeSeale
Replied by MikeSeale on topic Freewing F14 underpowered
Just one more thought...what connectors are you using and is all the wiring soldered by you or was it all plug and play.

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4 years 7 months ago #20739 by Wingman1962
Replied by Wingman1962 on topic Freewing F14 underpowered
I'm using HXT connectors on my 6s packs. I live in Christchurch was planning to go up to cashmere at the weekend. The fans would have been fitted at the factory, they look right.

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4 years 7 months ago #20742 by MikeSeale
Replied by MikeSeale on topic Freewing F14 underpowered
I'll see if I can make an adaptor so you could try my batteries on your setup. Let me know when you are planning on visiting Cashmoor and I'll see if I can meet you there.

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