Here is how I built my 6900mah 6.6 volt pack for my li//bl pro truck. 1st I took 2 cells & soldered the a + & - togather. Then I attached battery plugs to the other sides of the 2 cells. This makes a 6.6 volt 2300mah pack. Then I built 3 more of these packs. Then I attached 3 male deans plugs to my esc. You just take 3 deans plugs w/ wires & solder the + wire of all 3 to the + wire of the esc & the same goes for the neg. wire. When you plug the 3 6.6volt 2300mah packs into the 3 plugs it will combine their capacity & give you a 6.6volt 6900 mah pack. Then I went & built a wiring harness that uses 3 deans plugs. If you want to use a balancing plug then just go & solder one up to it as though the pack is a 6s pack when it is hooked up to the charger.