I have never charged a pack over 1c. My battery's also last for at least a year to 18 months. I am very loyal to smc. Has anyone charged over 1c with their lipos? I know protek can handle 2c and the new lrp can handle 3c. Smc has all of them beat on price though. I also pre charge all of my packs before race day, or show up early and do it. I wish the hitec was 20a per channel.