I am on the market for a charger that can charge 2-4 Li-Pos at the same time. I want to know if the Turnigy Reakto 300W 20A 6S Balance Charger can do this. My highest mAh battery is a 3200 3S, and that will likely be the highest. Is there anything extra I have to buy to get this charger to work? Can it hook up to the wall AND a car battery? Thanks!