Product Name : PANASONIC Lithium-ion Rechargeable Battery. Model : PANASONIC CGR18650A . Norminal Capacity : 2000mAh . Nominal Voltage : 3.6 V . Diameter : Max 18.5+0/-0.7mm . Height : Max 65.0/-1.0mm . Weight(Typical) : 43 g . After a fresh battery has been charged at constant voltage/constant current (4.2 V, 1190 mA (max), 2 hours, 20°C), the average of the capacity (ending voltage of 3 V at 20°C) that is discharged at a standard current (370 mA).