G-Tech upgraded version:

GEA8K4S10E5GT: Gens ace G-Tech 8000mAh 14.8V 100C 4S2P Lipo Battery Pack with EC5-Bashing Series

Specs:

- Product Type: PC Case Lipo Battery Pack-Bashing Series
- Capacity: 8000mAh
- Voltage: 14.8V
- Net Weight: 737g
- Dimensions: 157*55*42mm
- Balance Plug: JST-XHR
- Discharge Plug: EC5

Usage:

Gens ace 8000mAh 14.8V 100C 4S2P Lipo Battery Pack with EC5-Bashing Series is suited for Arrma 8S, like Kraton, outcast, and 1/7 or 1/8 scale car, sledge etc.

Features:

Large-capacity battery specially designed for ARRMA vehicles to maximize battery life. 
Better grip in the battery tray. 
PC material and silicon rubber case provides dual protection.