View Single Post
Old 01-10-2012, 06:41 PM   #44 (permalink)
IamIan
Master EcoModder
 
IamIan's Avatar
 
Join Date: Dec 2010
Location: RI
Posts: 692
Thanks: 371
Thanked 227 Times in 140 Posts
Quote:
Originally Posted by Formula413 View Post
Perhaps that stick has one bad cell and five good ones? The capacity is almost exactly 5/6 of the average. Of course that's irrelevant unless you have a way to disassemble sticks and re-weld them together.
I doubt it would be worth the trouble ... but ...

After you tested each of the 6 cells in a subpack stick to quantify them ... if it turned out that it was just one cell ... you would need to carefully take the welded 6 cell subpack apart... something like the way Mike D did it ... shown Here.

Then in order to weld the pack back together you need a good capacitive discharge spot welder ... you could buy one for more than a new battery pack costs ... or you could build cheaper if you that the know how ... one like Mike D did ... Here.

To be safe you retest... but that is a lot of work / effort... I wouldn't recommend it ... doing the 20 subpacks is enough work already.
  Reply With Quote