Palm Power 2S 180mAh battery with a high 45C discharge rate and JST connector and balance lead for charging.   

Popular Applications:

• Fairyweight (150g) bots
• Running two batteries in a larger bot to provide different voltage to weapon/drive
• Replacement for the now discontinued Turnigy Nano-Tech 180mAh.

 Specifications:

• Capacity: 180mAh
• Voltage: 2 Cell / 7.4V
• Discharge: 45C
• Weight: 14g - (Because of the size these are weighed in multiples to determine a more specific weight, see images).  
• Dimensions: 37x11x20.5mm
• Discharge plug: JST