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