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BrianG
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09.15.2007, 04:14 PM

Well, that 1500w estimate was generous. I typically use between a 6x-7x multiplier and it usually works out very close. 9.2A x 7 = 64.4A burst. That makes 1487w, but that's assuming the voltage is 3.3v/cell, which I'm sure is not the case. Assuming the 7x multiplier is right, 1300w would equate to about 2.8v/cell under that load. Is that about right?

I'm curious because I still want to make that runtime calculator/lipo selector page for my site and need all the sample data I can get. BTW: Could you post your eagletree results in that thread? It would help a lot.
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zeropointbug
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09.15.2007, 04:56 PM

You bet, it IS about 65 amp bursts, I saw a single 70 amp burst so far of the two runs I have done.

What other info would you like? Any other setup info? like gearing, weight?

I will post my 7s2p pack eagletree as well on that thread, and I will post a new eagletree plot when I get my new 7s2p pack made (as soon as I figure a good mounting).

But so far, it appears like it's about 2.7 - 2.8 v/cell under this kind of burst load at roughly 65 amps, and I think 70 amps is the limit that you want on these cells, me thinks as far as good performance goes, and temps.

Actually, I am going to do a full run with the eagletree and see if I can sqeeze it all in there, so you have more data to work with.

Be back in a bit. Also, check out my 'current electric vehicle conversion' link soon, I will update the pics with the motor mounted...


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