This Li-poly battery features high efficient and high discharge, use a inspection machine to match packs, suitable for TREX 500 series and other professional model airplanes and helicopters. Max Continuous Discharge: 25C, Burst Discharge: 30C. Normal operating temperature is approx. 40-65°C(within 80% of rated discharge). Max. temperature: 80°C. Recommend to discharge the battery within 80% of rated discharge, keep 90% capacity when over 100 cycles, keep 85% capacity when over 150 cycles.(The cycle life and efficiency will reduce due to high current, high temperature and over-discharge) Output:22.2V(6S1P)2600mAh Dimension:43x143x33mm Weight:418g(Not including connectors)