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Old 05-13-2015, 04:22 PM   #12 (permalink)
Daox
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Headway makes some smaller cells that would suit you quite well I think. They have a 10Ah, 12Ah, and 15Ah version. I'm not sure where you can get them in Europe, but its worth a look.

Here is a US distributor:
Lithium LiFePO4 Cells - Headway Headquarters LLC | LiFePO4 Cells, LiFePO4 Battery Packs for EV, Lithium Iron Phosphate Battery

The price is quite a bit lower than the options you've posted.

Edit: found a possible source.

http://www.litrade.de/shop/Akkus-Zub...hparam=headway
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