1.    Model: Sony US18650VTC4 lithium high power battery 
2.    Nominal capacity: 2100mAh
3.    Rated capacity: 2000mAh 
4.    Nominal voltage: 3.6V 
5.    Charge voltage: 4.20±0.05V 
6.   Cut-off voltage: 2.5V 
7.    Max. charge voltage: 4.25V 
8.    Continuous maximum charge current: 4A
9.    Continuous plus charge current: 12A 
10.  Continuous maximum discharge current: 30A 
11.  Weight: 45.1±1.5g 
12.  Allowable environment temperature 
       Charge: 0 to +45degC
       Discharge: -20 to +60degC
13.   Limit of cell surface temperature
       Charge: 60degC

14.   Dimision:  18.2mm(D) * 65.0mm(H)