fullriver cylindrical LIfepo4 cells

w0ss

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Jan 1, 2017
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I came across some new old stock fullriver cells. They are 26650 rated at 3300mah. I put them on my B6 but they are only showing ~1ah capacity after a few charge/discharges. All the cells I took out of the box showed 3.2 volts. The outer box has 1 2012 manufacturing date.

I can't find much info on these cells does anyone have info? Also would it be likely that there is any hope for these cells? I took the risk as it was just over 1$ a cell. I was hoping they would have at least 2ah per cell. The B6 ony charges them to 3.6 with it's "3.3v life" setting. I am wondering if these need a higher voltage to fully charge.
Thanks,
WIll
 
Those are garbage cells. I tested them also and then opened a return. The 32650/32700 fullrivers are 0.00v DOA.

IR on the 26650 fullrivers is all over the place like 30-50 mili ohms mostly. No capacity increase from cycling them, but the IR does decrease with 10-20 cycles.
 
An advertised 3.3Ah for a LiFePO4 26650 cells seems unfeasibly high. The latest version of A123's LiFePO4 cell is rated at 2.5Ah and their cells LiFePO4 technology is widely regarded as the best on the market.
 
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