- Nov 17, 2016
Cool thanks. I thought so but figured I'd check with you guys haha. I'll just go with whatever is cheaper since I don't really care much about the barrel plug anyways.Yes, you can run sets of 3.7v cells in series to create a 7.4v pack. As for the charger, option 1 will give you a standard 5.5 x 2.1mm DC barrel plug. The receptacles for these are cheap and easy to find on ebay, digikey or Radioshack.