IMR 21700 4200 mAh PULSE 30 A CONTINUE 20 A CELL CHARACTERISTICS Shape Cylindrical Can Steel Diameter 21;07 ± 0.2 mm Height 70.9 ± 0.2 mm Weight 70 gr (max) Capacity Typical 4200 mAh Minimum 4000 mAh Cell voltage Charge 4.2V Discharge 2.75V Charge current Standard 4.2 A Maximum 8.4 A Charge time Standard 1.5hr Maximum 30A Discharge current 45A with 80° Temperature cut Internal resistance AC (1KHZ) 15 m Ω (max) Ambiant Charge 0°C to 45°C Température Discharge -20°C to 60°C Energy density Volumetric 615 Wh / l Gravimetric 230 Wh / Kg