Specifications:

3*753562SP1300-20C
Capacity: 1300mAh
Configuration: 3S1P
Voltage: 11.1v
Continuous rate: 20C
Burst rate: 35C
Dimension: 27x38x68mm
Weight: 120g

Lithium Polymer batteries have twice the capacity at about half of the weight of comparable NiCad or NiMH packs. As your models use lighter batteries their performance will improve RADICALLY and your flight times will more than double.