This is a Thunder Power 2S, 5000mAh 40C hard case battery pack. This pack is ROAR legal and is good for racing everything from on-road touring cars to off-road buggies and trucks.

Specifications:

• ROAR Approved
• 7.4V 5000mAh (2 cells)
• 40C (200.0A) cont
• 80C (400.0A) burst
• 138mm x 47mm x 24mm
• 304 grams
• Deans Connector
• Thunder Power 4-pin tap