Jan. 12 Cell Type UR18500L Specifications Nom inal Capacity Nom inal Voltage Charging Method Charging Voltage Charging Current Charging Tim e Ambient Temperature Weight Charge Dis charge Storage Min.1200m Ah 3.7V Cons tant Current -Cons tant Voltage 4.2V Std. 1200mA 2.5hrs . 0~+40℃ -20~+60℃ -20~+50℃ 33.7g Dimensions of Bare Cell H D d 49.2mm 18.05mm 9.0mm Dim ens ions (W/Tube) (D) (H) Volum etric Energy Dens ity Gravimetric Energy Dens ity 18.10m m 49.30m m 350Wh/l 131Wh/kg Typica.