1.44 kWh of LiFePO4 for sale: <15 full cycles

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youreakirk
youreakirk Registered Users Posts: 1
Hey all,

I am selling a large amount of barely used lithium battery (the safest chemistry, LiFePO4) from an abandoned electric bike project (https://endless-sphere.com/forums/viewtopic.php?lf=9&t=60932)

These cells are 3.2v each (nominally) and could be arranged to give most common bank voltages (12-48v).

Consists of 30 15 Ah LiFePO4 Headway cells (40152S) purchased from Headway Headquarters (http://www.headway-headquarters.com/40152s-15ah-headway-cell/)

This pack was always connected to a BMS, ran at very low C-rates, and has less than 150 Ah pulled from it, equating to less than 15 full cycles. Most times it was never discharged more than 50% DOD, and only once to 100% DOD to test the range (it was cut off by BMS after this).

There are several thousand cycles left on this pack, which was hardly used, well maintained, and bought approx. 1.5 years ago.

I paid $900 for the pack (30x$30) plus extra for the bus bars and orange connectors and shipping.

This pack has hardly any use but I understand the (well-founded) extreme apprehension when buying used battery packs. I am not trying to swindle anybody, I'm just a college student trying to cut my losses and get some money out of my project, in addition to not letting a nice pack sit unused.

According to the graph above, the pack is virtually brand new in terms of use. I would like to start talking around the $700-750 mark, but willing to negotiate. I'd like to sell all 30 cells at once, but could sell individually if persuaded. Shipping not included, local/regional pickup workable (Tulsa, Oklahoma area).

]http://s23.postimg.org/7t12p80pn/40152_cycle_life_vs_dod_56329_1365186786_1280_1.jpg
Graph showing cycle life vs DOD (most cycles were to less than 50% DOD, which equates to 5,000 cycles).

http://s29.postimg.org/lf5nqqrdj/40152_SPECS_1_63366_1363977833_1280_1280.jpg
Battery spec sheet

http://s27.postimg.org/pqf30q8ar/IMG_20140927_171359.jpg

http://s27.postimg.org/v33xeuw77/IMG_20141031_171021.jpg

http://s27.postimg.org/mfvrxyooz/IMG_20141116_185313.jpg

http://s29.postimg.org/bsdimqsw7/IMG_20140916_110038.jpg