Specs:

• Chemistry:  INR
• Max Continuous Discharging Current: 20A
• Max Pulse current (less than one second pulse):  100A
• Typical Capacity: 2500mAh
• Style:  Flat top
• Dimensions: 64.85 ± 0.15 mm (L) x 18.33 ± 0.07mm (D) 
• Weight: 43-45g
• Discharge cut-off voltage: 2.5V
• Voltage: 3.6V
• Full Charge Voltage: 4.2V ± 0.05V