Lipos are different than NiMh, the recommended charge rate for lipo is 1C (capacity/1000) so for a 3000mah lipo a 1C charge rate is 3amps.

If the lipo manufacturer recommends higher than 1C charge rates, the lipo lable will usually tell you if the lipo can be charged at 2C or 5C etc.

Your manual will cover the rest of the details for lipo charging. Always balance charge lipos, its safer and better for maintaining the lipo at optimum conditions.