Mine came with 16 EVE 314Ah cells. Which are exactly the same physical size as the popular 280Ah and 304Ah cells, just heavier.
The main catch at the moment is that the only instructions are a video, https://www.youtube.com/watch?v=MJ-RMxj66CA which personally I find an extremely frustrating way to build something. Very useful for an overview, but there is a really tedious amount of skipping back and forth trying to do things in the right order and not to miss anything important. Especially as I was assembling in the extension at the edge of wifi-range. Dear Fogstar, please make us a PDF! I've taken a load of photos and will do it for them if I get time.
Frustratingly it says 'torque accordingly' for the clamp bolts that hold the top plate onto the cell-stack, but doesn't give a torque figure. Anyone know? Also annoyingly it shows all the cells going in and it's hard to see if a foam pad is put above and below the stack. Looks like not, so I don't put them in, but then there is a gap so no actual clamping will be going on. So I take it all apart and put them in. Then I get past the clamp bit in the video and it says 'do not put foam at top and bottom. Grrrrr.
A document with some diagrams would be _soo_ much more efficient.
~1.5mm gap at top of stack with one end foam (bottom):
~1.5mm of foam compression with 2 end-foams:
Having no compression seems just wrong so I think foams-in is the right answer, whatever the video says.
However, grumbling about the instructions aside, the kit actually seems very well done, with flexy busbars replacing the rigid ones from EVE, a BMS board _and_ separate higher-power capacitive balancer. And at a pack price of £106/kWh these batteries are actually getting reasonably cheap (yes I know I could fully DIY for even cheaper, but I rather like the nice sturdy metal box).
