Keep us updated on this. Looks fun!
Sorry but no. Only 21700 and 18650 are supported at this time. I am thinking about adding 26650 and if i decide to roll with it, it will be over half a year to get all done.
2 Likes
Yeahhhhhh Iāll just make a model. Thx for response tho
I have started, so i should have it in 2 weeks or so. Iāll tag you if i rememberā¦
1 Like
I knew it was going to be tight trying to fit a 12S4P of 21700s inside N.E.S.E. cases for this build. Fortunately with a thick enough fire-retardant gasket just about anything is possible! I still need to clamp everything together and install the stainless steel M4 inserts which finally arrived from AliExpress. I am going to button it up with ten or twelve SS bolts using stacked plastic and anodized fender washers which will help reduce some of the gasket bulge while protecting the gorgeous enclosure. Probably going to want to invest in some risers, but the 110s will get me most of the way there for ground clearance. Wish me luck!
5 Likes
Awsome man! Iām making a 12s4p pack, so would love if you could make designs that go higher in cell series count, rather that just having packs meant for parallel. I just donāt want 12 separate packs for 4 cells 
Nice snug fit! Soon Iāll be making 10s4p NESE 21700ā¦ and intend to use that same 8-cell housing design. Did you make any tweaks to the model or print as-is? Actually Iāll be adjusting the length to fit the funky-sized 20650 cells (LG H6 recently on sale) but maintaining the 21mm diameter to make use of the 21700 NESE contact hardware. So starting with a native 3D CAD file (not STL) would be awesome if you know of any. Good luck with your build, its looking good!
Well, it is the way this system works. You series as many as you need for pack voltage. It will be the same as other types, 2S4P,3P,2P. So for 12S you would need 6 modules.
He purchased complete modules and they are unmodified. You can request CAD files if you want to play with them. I donāt publish them, only on requests.
Here are some size comparison between 26650(blue) 21700(green) 18650(orange),
26650 8P is 225mm in length vs 21700 8P 184mm 
5 Likes
Those are 5x 4P+4P and 1x 2S4P. This is the most compact way to make a 12S4P flat pack. You would only need 4x 4P+4P for a 10S battery. The modules are standard 21700 and were printed by Agniusm in Lithuania and I received them in about two weeks in the western US. I ordered 10x 18650 series bus bars for this project but I wanted the option to convert into a stacked pack in case I decide to repurpose the pack for flexy deck so I also ordered 10x 21700 series bus bars. Now I am waiting on a 12S D140 BMS which I plan to wire charge-only to finish the battery.
Awsome man! Didnāt know you had 2s(X)p modules already (didnāt see them on your site).
Thanks @nomadic_myke and @Agniusm for clarifying. Those 4P+4P modules are well suited for esk8 width - certainly 18650 size and even the 21700 size as @nomadic_myke illustrates. The configurability of flat vs stacked is a plus. My tabs/hardware are in transitā¦ Iām really excited to print some enclosures and assemble!
1 Like
Nice. If you will need any tips on printing give me a shout.
1 Like
Waitā¦ seeing as these are based around the dimensions of the cells themselves, could one not simply take an existing design for say, the 18650s, and just stretch it XX% of 26/18mm to represent the longer cell of a 26650? (Vs a 18650, where the length is kept the same and the diameter is the variable)
Main thing I care about though are the tabsā¦ what are the dimensions of the tabs so that I can fab my own? I donāt live in the EU, and paying 70$+ after shipping for metal tab inserts seems quite silly to me.
Nvm I can just stuff ground strap braided copperā¦ that should work. oh yes. sketchiest nese system build ever coming up.
Is this a an evo with the eboosted enclosure? Single stack? I have been wondering whether my 12s4p 21700 build would fit or not, so this answers that question haha. I used mishraās design so its a little narrower. How much space do you have left over for everything else?
1 Like
That is a Subsonic Century with the eboosted enclosure (single stack). There is enough room for a reasonably small BMS and two single ESCās or a dual controller if that is your thing. I am planning to put a Bestech D140 and two v6 neoboxes in there.
2 Likes
You cant just take and scale it. All the holes will go out of proportion. All side thicknesses will increase unnecessarily.
I am sorry to hear you think its silly paying someone who invested quiet heavily in time and financialy developing this product so more people could enjoy building even if they dont have skill. I am sorry to hear that you think other members are silly purchasing from me and supporting further developement of this system and that value involved with this goes down to bare metal.
I am refusing to share anything with you, cause your attitude makes me sad. You want cad files so you could spend less time doing what you need and then disregard my years of work and put a price on it equal to zero.
27 Likes