Lipo battery cells have a nominal voltage of 3.7 volts per cell.
If a model named a 3 cell (3S) 11.1 volt battery – lets just say that is what has to be used.
Capacity indicates how much power the battery pack can hold in milliamp hours (mAh). This is just a fancy way to say how much load or drain (measured in milliamps) can be put on the battery for 1 hour at which time the battery will be fully discharged.
3.C Rating(DISCHARGE RATE )
Discharge rate is simply how fast a battery can be discharged safely.
Many people ignore the label, the battery was soon broken.
If you need your battery life longer, you must use it as the label says.