It took me a little bit of time, but here comes a result from capacity tests.
First, test conditions:
Temp cells in range 75°F - 79°F (24°C – 26°C) Sensor attached to the side of the cell.
Full charged cut off set at 3,6V
Discharge cut off set at 2,5V
Charge/Discharge 0,5C (10A) – These is max capability of my equipment.
According to brochure form A123 system http://www.a123systems.com/Collateral/Documents/English-US/A123%20Systems%20AMP20%20Data%20Sheet.pdf
I should expect minimum capacity at 19,6Ah (I do not wont to even think about 20Ah that a123rc says)
Unfortunately results are a little bit of disappointing.
Only 2 of them have expected these capacities
Cell 1 – 18,726 Ah (-0,874 Ah)
Cell 2 – 19,004 Ah (-0,596 Ah)
Cell 3 –18,949 Ah (-0,651 Ah)
Cell 4 – 18,992 Ah (-0,608 Ah)
Cell 5 – 19,517 Ah (-0,083 Ah)
Cell 6 – 19,842 Ah (+0,242 Ah)
Cell 7 – 19,576 Ah (-0,024 Ah)
Cell 8 –19,815 Ah (+0,215 Ah)
Cell 9 – 19,442 Ah (-0,158 Ah)
Cell 10 – 19,378 Ah (-0,222Ah)
Cell 11 – 19,307 Ah (-0,293 Ah)
Cell 12 – 19,266 Ah (-0,334 Ah)
Cell 13 – 19,372 Ah (-0,228 Ah)
Cell 14 – 19,159 Ah (-0,441 Ah)
Now I am thinking of opening dispute trough PayPall, but I am not sure if there is the point, because I could not find any official information on http://www.a123systems.com
about HVC/LVC, and maybe factory test them differently. So far looks like I was screwed on over 4Ah in total.
This really pised me off, because I feel to be screwed second time.
First by http://www.batteryspace.com
on 4Ah LiMnNi - 26650 Cell that died after 140 cycles, and now by http://www.a123rc.com
I need guys your advice. Is it worth opening dispute? Is it possible to get these battery with capacity that data sheet says? Or they are what they are? Can anyone more experienced explain me, what is wrong or maybe not with these capacities?