A123 32113 Ultra-B cell, cycling so far

[zeropointbug]

32113 M1 Ultra-B cell
180g.
4.4Ah
40C rated Cont. discharge
Considered a 'high power' cell

Just thought I would share how testing of this cell is going so far. I am manually cycling it through my 720i NET charger using 10amp (maximum 80watt/10amp) and a 20amp charge rate. Since the older 720i can only go down to 2.5v/cell on discharge (not sure on new ones) it will have to do, might only miss a few 10's of mah anyways...

So far, all I have to say about it is that it's a BRUTE of a little bastard(32113 little?) Pounding 20amps into it and it is just bagging for more, my guess it could handle 30+amps, judging by the cell iR and voltage fluctuation (very little). At 20 amps, there is roughly only 0.08 volts between ON and OFF current. Charger is reporting a 1-2 mohm cell iR, very nice. Check out the pics.

Notice how the cell will take 20amps charge rate all the way to 97% SOC (don't mind the 89% as the 720i miscalculates the SOC), after that the currents falls pretty damn fast too, doesn't mess around with too much time on CV stage, maybe 1 min out of the less than ~15 min charge.

Cycling is done under a 100% DOD. Currently on discharge cycle #85