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skellyo
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04.24.2008, 02:18 PM
I can't believe they're really pushing the 1515 1Y for use on 6S and a 1512 1Y for 4S.
   
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Maciolus
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04.24.2008, 02:23 PM
25V

7*3.7= 25.9V
8*3.3= 26.4V

> HB L2PE + MMM + Medusa 60-1600 @ 6S A123
> HB LSP + MMM + Medusa 70-1600 @ 6S2P A123
> AE B44 + MM + Medusa 50-3300 @ 4S A123
> AE J82 + SW 5700 @ 2S LiPo
> AE TC5R + MM 6900 @ 2S LiPo
   
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BrianG
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04.24.2008, 02:27 PM
Quote:
Originally Posted by Maciolus View Post
25V

7*3.7= 25.9V
8*3.3= 26.4V
Don't forget that lipos are 4.2v/cell, or 29.4v on 7s - and A123s are 3.6v/cell or 28.8v on 8s. Some components may not like that even though the voltage will drop fairly quickly.
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BrianG
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04.24.2008, 02:25 PM
Quote:
Originally Posted by skellyo View Post
I can't believe they're really pushing the 1515 1Y for use on 6S and a 1512 1Y for 4S.
Why is that? The 1512 1y (kv=2750) on 4s is ~41krpm, and the 1515 1Y (kv=2200) is ~32krpm. I would even go up to 5s on each as long as it is geared right...
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skellyo
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04.24.2008, 02:30 PM
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Originally Posted by BrianG View Post
Why is that? The 1512 1y (kv=2750) on 4s is ~41krpm, and the 1515 1Y (kv=2200) is ~32krpm. I would even go up to 5s on each as long as it is geared right...

Umm, Brian, 6S on the 1515 1Y is what they recommend...not 4S. That's 48.8k RPM.
   
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