A polymer lithium ion battery is rated at 3.7v, 6600mAh and a maximum discharge current is specified at 3.3A. I take it this means the battery can be discharged at 3.3A and last for two hours since 6.6Ah/3.3A = 2 hours.
However, in addition to the above specifications, the battery has a nominal capacity of 6600mAh at 0.2C discharge. How does this extra bit of information affect my above calculation? I.e. How will it affect the battery life for a given current draw?