[Gene]

Hi guys,

What to think about these cells?
They are/where GP Lifepo4 42ah cells of a vectrix.
The pack expanded a lot when i loosened the metal straps holding it together.
No wonder the pack is dead.

 

[Karter2]

What are the individual cells ?
Are they each 42Ah and ?? In series, or some other capacity and configuration ?
Size ?
Thanks

 

[Gene]

Pack is 40 cells in series, specs of cells in link below but no longer available.

http://shop.vectrixparts.com/lifepo4-gp-42ah-spare-cell.html

Probably vectrix is not to confident to sell these cells any longer, wonder why

Now looking for the best solution to give the vectrix a second life, a lot of possibilities but always a lot of $$$.

 

[Karter2]

Thanks,
This guy used modified Tesla modules....also expensive , but very solid result.
https://endless-sphere.com/forums/viewtopic.php?f=14&t=88862

 

[Gene]

Tesla conversion is a blast, also leaf-cell conversions seems very good.
An alternative is an 18650 conversion as in following link.

http://visforvoltage.org/forum/14037-vx1-li-ion-18650-conversion

The easiest way to go is to order the 30ah GP-cell they still offer at vectrix, but are they any good? I'm not too sure about that. If you see the state the 42ah cells are in after just 5 years ...

http://shop.vectrixparts.com/lifepo4-gp-30ah-spare-cell.html

Like the diy approach of the 18650 conversions out there because of the flexibility of it, would also like to stick with lifepo4-chemistry so i don't have to change anything to the current elektronics and settings although energy density is less than li-ion, but range isn't that of an issue to me.

Still a lot of reading to do before i start building a battery pack.