Working modes Rate mode, Time mode, Weight mode, Interval mode, Ramp mode, Sequential mode, Micro mode, TIVA mode, First dose mode Physical Characteristics Size: 300mm×145mm×130mm Weight 2 kg Screen Size: 4.3” touch screen resolution 480 × 272 Operation Environment Temperature: 5~40℃ Humidity: 15~95% (non-condensing) Power requirement: 100-240V~, 50/60Hz±1Hz Battery Type: Rechargeable Lithium-ion battery Battery Capacity: 2200mAh Battery Recharging Time: Maximum 4 hours for charging (power off) Battery backup: 8 hours for continuous working (at 5ml/h)