For most stock lipo's you get with a RTF model, you should charge them at 1C, or 2200mah lipo at 2.2 amps. BUT! My 6S 3300mah Nano-Tech has such a high maximum charge on the website, i can charge it at my chargers max rate of 5amps with the only problem/danger being my old charger getting a little hot! You should check a website such as hobbyking were they are sold to be certain you are not putting yourself, or your RC's in danger.
Also, with that lipo... eeeehhhhhh. Good luck! I know i"m always very cautious with lipo's, life's, or lion's, but i have seen what one can do to many times before.
- Ethan.H