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No dud TS cells in my pack yet Bottomfeeder. I bought 42 and installed 40 cells. All the cells read within 0.01 volt of each other when received and the 2 not installed have only dropped 0.02 volts over the last 7 months (they are down to 3.28 volts.) I have hammered them briefly up to 5C (300 amps on a 60 amp hour pack) and not one cell has dropped down to 2.5 volts. The cells within the pack are staying very close though I don't have a lot of cycles on the pack and I have never removed more than 30 amp hours (about 50% DOD.) I'm impressed with the newer TS LiFeYPO4 cells!
 
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