Bought 7 of these (10S 4.5Ah) to make a 20S 13.5Ah pack and have one spare brick. The price was $60 a piece in NL Warehouse on flash sale, a real bargain for 35C cells. The box was damaged but cells arrived intact and well balanced, all within 3.82~3.85V, ready for paralleling.
As far as performance goes, these are NO WAY 35C cells. Tested them today and they sag violently given their rating. On a 55-60A controller the sag was as much as 4 volts, even outperformed by my 3yo 20C Turnigy hardcases!!! Don't get me wrong, these are still good batteries, but they're more like 10-15C, far from 35C. I really wanted to like them and was expecting close to 1-2V sag. Still, for me this is no problem since I never exceed 5C load, but for real high power applications, these would be a poor choice. Hope this helps other make the right decision.
As far as performance goes, these are NO WAY 35C cells. Tested them today and they sag violently given their rating. On a 55-60A controller the sag was as much as 4 volts, even outperformed by my 3yo 20C Turnigy hardcases!!! Don't get me wrong, these are still good batteries, but they're more like 10-15C, far from 35C. I really wanted to like them and was expecting close to 1-2V sag. Still, for me this is no problem since I never exceed 5C load, but for real high power applications, these would be a poor choice. Hope this helps other make the right decision.