Questions

[Jerry Budd]

HI Adam,

The ThunderPower 10s3p LiPo's Frack & I use (Jason too) are actually 
42volts, 6ahr = 252 Whr

so that actually works out to ~66 cells and 5 lbs difference in 
weight to use Nimh.  Not a realistic scenario.

Thx, Jerry

>lipo 10s3p  - 33volts, 5ahr = 165Whr
>Nimh gp3300 - 1.15volts/cell, 3.3ahr = 3.8Whr/cell works out to 
>43cells to store the same energy.
>^All rough average quick numbers, of course.
>
>Thunder Power lipo costs $680 and weighs 1.1kg.
>Epic GP3300 costs - around $220 and weighs 2.7kg.
>That is a weight difference of about 3.5lbs.
>
>And that is ignoring the problem of parralleling NiMH batteries (as 
>I understand it, this isn't supposed to be done), and how much extra 
>energy would be required to carry those 3.5lbs, and the decreased 
>voltage caused by cold GP3300s.  I think the GP2200's have a higher 
>energy density, so they might make the numbers a little better, but 
>the point remains.
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-- 
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Jerry Budd
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