RE: 40 size electric.
I see now.. you can series any combo of 2s 3s ect together and only parallel same # of cells with each other (for obviouse reasons) Thanks!
Tianci- actually it would work better for me than Larger packs running 5s2p for the versatility and the fact that all I have to do is but 2s packs since i have a load of 3s extremes and prolites. I will probably use my extremes to make them
Thanks guys that made my day knowing i could do that without adding to my puff pile