Fast Lithium Battery Internal Resistance Test : Experience swift and precise internal resistance tests for lithium batteries within an extensive range. Zr Function : Measure internal resistance as low as 0.30 to 0.50 milliohms, making it ideal for high-capacity, high-discharge rate batteries. Digital Lcd Display : The digital lcd display ensures readability in various lighting conditions, enhancing user convenience. Battery Sorting Function Included : Efficiently sort batteries according to their internal resistance and voltage using our intuitive sorting feature. Low Power Consumption & Multiple Power-Saving Options : Conserve energy without compromising functionality with our low-power design and power-saving modes. Unleash the full potential of your battery testing with our Lithium Battery Internal Resistance Tester. Engineered for speed and equipped with a ZR function, this device delivers exceptional performance when measuring low resistance values. Say goodbye to lengthy testing processes and hello to efficiency. Our tester not only meets but exceeds expectations in terms of reliability and versatility.