I was out on HobbyKing looking at lipos and something struck me odd. For 3s 3500+ batterys, they say to charge at 2C. It was my thought that you charge according to the Mah of your pack. The Zippys that I have, or rather the zippy, a guy a the local track I used to visit boosted one of them, is a 3500 3s and I charge it at 3.5. I am doing something wrong or is the website off?