21kWh / 251 EIG cells in ~3kWh banks

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mrmagicfeats   1 mW

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21kWh / 251 EIG cells in ~3kWh banks

Post by mrmagicfeats » Sep 25 2017 11:51pm

Selling 21kWh of EIG cells setup in ~3kWh banks. 251 cells in total. Cells are in good working condition. Current setup is 76v, includes the bus bars and extras as shown.

Would prefer to sell the whole lot to a single buyer but will sell 35 or 36 cells together.

Will ship anywhere in the US at the expense of the buyer.

$300 for 35-36 cells + shipping
$1900 for all 251 cells + shipping

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999zip999   100 GW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by 999zip999 » Sep 28 2017 1:27pm

How many cycles do these cells have ?

Kin   10 kW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by Kin » Sep 29 2017 10:10am

Hi MrMagic!

Your system looks really nice :O. I have been tempted to switch my Honda Insight over to A123 packs as the 50s Headway pack is dying and I don't feel super comfortable with most other lithium chemistries...this is a little interesting though.

Is 35 cells the "base unit" of what is a feasible amount to cut apart the pack? So if I wanted 42 cells, I would need to get 70 cells? That is reasonable, I am just checking. I can probably find a use for the other cells amount friends.

What do you define as "cells are in good condition"? Do you have any information about remaining Ah? Or previous life conditions?

I had some trouble being certain I found the right datasheet- is this correct: http://www.ebaracus.com/sites/default/f ... asheet.pdf ? It seems to list 10C bursts, 5C continuous.
New to endless-sphere? Notice a lot of signatures recommending Ebikes.ca? That's because it's the best place for a quality and manageable, (but still 'real'), first build. Justin is a solid supporter of electric bike development, and a good source of equipment.

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amberwolf   100 GW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by amberwolf » Sep 29 2017 2:00pm

That is the datasheet.

These are the same kind of cells I use on my SB Cruiser trike (14s2p traction, 4s1p lighting) and CrazyBike2 bike (14s1p traction, 4s1p lighting).

If you search my posts for "EIG" you'll find various threads I've posted in discussing them.

FWIW, it looks like with those busbars you can very easily build any size pack you want in 2p sections. You could make busbars (like bigbluesaw watercut?) for any other number of parallel cells, or use ring terminals crimped to wire to connect them.

The cells stack and bolt together thru the mounting cases very easily. (metal plate on the bottom screws into bottom of each case, and long bolts thru top corners clamp whole pack together).

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by Kin » Sep 29 2017 2:06pm

That is...so appealing....I am tired of the "connection problem" I have with various DIY packs :).

If I can get a better sense of the remaining lifespan and previous condition of these cells I think I would be interested in a decent number. :) Would take a couple days to confirm all information.
New to endless-sphere? Notice a lot of signatures recommending Ebikes.ca? That's because it's the best place for a quality and manageable, (but still 'real'), first build. Justin is a solid supporter of electric bike development, and a good source of equipment.

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amberwolf   100 GW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by amberwolf » Sep 30 2017 1:02am

Yeah, the connection method...it's just eeeeeaassssyyyy. :)

(just don't drop your allen wrench across the busbars! :lol: :oops: )

That and the easy-to-package cell format...If I had money and they were local (battery shipping is a PITA) I'd buy these as spares (though I have plenty for now, it doesn't hurt to have spare packs), or to use as a solar storage system (if I ever get any panels).

What are the voltage sag limits you're after under load?


BTW, you could use the A123 pouch cells the same way, but first you have to weld brass (I think) tabs to teh cell tabs like the EIGs have, they're "folded" at 90 degrees just before the holes for the screws.

You could also 3D print frames like those the EIGs use, but sized for the A123 pouches.

But the only source I know of for A123 cells that I'd trust is the manufacturer, and they're expensive (and dont' come with any mounting or connecting hardware).

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steveo   1 MW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by steveo » Oct 01 2017 12:09am

pm sent
Repair Thread
http://endless-sphere.com/forums/viewto ... =3&t=27170
Hub Monster bike ~ 24s7p A123 15.4ah/18kv Six Phase Motor/Dual Max-E Adapttos/32kw~42.91Hp/Est 140LBS
X6 Kmx Trike ~ 24s4p 20ah/X6 MHM 602/Infinion EB324 IRFB 4110/20Kw~26.82Hp/Est 120LBS ~SOLD~
Lightening rods bike ~ 18s2p 10ah/1500w Inrunner/Infinion EB312 IRFB4110/2KW~2.68hp/Est 60LBS
EV Outboard ~ 12s8p 40ah/5KW GM Inrunner/Infinion EB324 IRFB 4110/18Hp Evinrude Drive/Est 100lbs
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999zip999   100 GW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by 999zip999 » Oct 02 2017 11:17pm

Yes Steveo I was waiting his answer before I tipped you I just need 42 plus cells. ?

999zip999   100 GW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by 999zip999 » Oct 07 2017 4:43pm

Pm sent

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alec   10 W

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by alec » Dec 04 2017 6:33pm

Bump. This is an amazing deal that nobody seems to be jumping on.
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Kin   10 kW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by Kin » Dec 04 2017 10:00pm

Was shipping always an option? I may be misremembering this.

Mrmagics did you have a way of shipping a bank to the east coast? And do you know roughly how much that costs? For all [unlikely] or 1-3 banks [more realistic.]?
New to endless-sphere? Notice a lot of signatures recommending Ebikes.ca? That's because it's the best place for a quality and manageable, (but still 'real'), first build. Justin is a solid supporter of electric bike development, and a good source of equipment.

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amberwolf   100 GW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by amberwolf » Dec 04 2017 10:15pm

If it helps, one pack of 14s2p uncontained weighs about 35lbs with similar connection hardware. 14s1p in a 50cal ammocan weighs about 20lbs.

ankith18@gmail.com   1 µW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by ankith18@gmail.com » Dec 24 2017 2:17am

Would you be willing to ship 3 kWh pack to Bangalore ,india ?? Also how can I recharge this pack ?? With optional fast charge if possible..

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jonescg   1 GW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by jonescg » Dec 24 2017 10:49pm

I actually designed a selection of termination kits for the EIG cells, including 2p, 3p and 4p. They have been sold, but I have the PCB files here if anybody is interested.

michaelebradley   1 µW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by michaelebradley » Aug 05 2018 8:17am

I am interested in some of these if you have any available. Sent a PM. Thanks

lexus82su   1 µW

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by lexus82su » Aug 23 2018 1:50pm

I am interested in purchasing some of these cells. I sent you a PM.

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alex12342011   10 W

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Re: 21kWh / 251 EIG cells in ~3kWh banks

Post by alex12342011 » Dec 28 2018 4:31pm

Do you have any more left? I'm interested in a few.
100V 9C 2806 Tidalforce 750 (non operating..)

1050hp FF91 (In development)

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