This is the Thunder Power Pro Power "G4" 45C, 6S, 22.2V, 5000mAh Li-Polymer Battery. Thunder Power Pro Power "G4" series batteries deliver the same mAh capacity as previous Thunder Power 5000mAh batteries, but with upwards of 40% more power and 6-times more cycle life than most other 25C to 40C+ continuous discharge rate capable batteries! This makes them the perfect choice for use in a wide variety of 500 to .90/700 class extreme 3D performance heli and large-scale, extreme speed EDF airplane models.

Specifications:
Type: Lithium Polymer
Capacity: 5000mAh
Voltage: 22.2V nominal
Number of Cells: 6
Weight: 801 grams
Configuration: 6S
Dimensions (LxWxH): 155.0x47.0x43.0mm
Maximum Continuous Discharge: 45C (225A)
Maximum Burst Discharge: 90C (450A)