View Single Post
  #169  
Old 13-11-2008
_sleigh_ _sleigh_ is offline
Mad Member
 
Join Date: Jul 2006
Location: In front of my PC
Posts: 1,920
Default

Quote:
Originally Posted by TheRacePlace View Post
It seems to me trakpower build a cell to fit the car there were no regulations at the time on dimensions so they made it to fit the cars,by default that size would be similar to nimh pack dimension, currently it is the only hard cased saddle available, we then say we want to use them and some bright spark says ok but they must be this size which makes the only cell out there unusable!!. you cannot argue that the manufacturers should have made them to the correct specification as there wasn't one!, they made them to the only spec required ie they fit the cars.

i did try to point this out prior to the AGM and thought common sense would prevail.

its not difficult thing surely. we simply propose to relax the size rule on saddle configuration packs until 2010, problem solved or does something that simple cause a problem!!
john
I'm not sure I entirely agree John.

If you take the dimensional requirements for NiMh cells, each cell needs to be 23 x 43mm. So for a LiPo saddle pack being built 'per rules', I would think the logical sizes would have been 23 x 43 x 69mm. (69 = 23 x 3). That gives a total length for two end-to-end of 138mm. With the addition of battery bars on NiMh cells then yeah you could claim an extra couple of 'mm' on the width, but still this would be within the LiPo width of 47mm.

So, how can any manufacturer now complain, had they worked to those logical guidelines then any cell would now be legal under the new LiPo rules.
Reply With Quote