Originally Posted by
hardmankam
I didnt know they make Sub-C sized A123. But for 2S A123, the total voltage should be 6.6v, not 4.8v.
No the sub-c sized cells are not 3.3v like the big cells you used. Another difference is that the 3.3v cells are alum construction while the smaller cells I have are standard cell construction so much easier to build the packs.