Fangrui Product Details Intuitive Display, And Easy To Operate Measurement Of Ternary Lithium Battery L From L03 String To L20 String (power-off Memory) Lead-acid Battery P Measurement: Dc12v, 36v, 48v, 60v 72v, 84v (power-off Memory) Measurement Of Iron Lithium Battery F From String F03 To String F23 (power-off Memory) Customized Setting Of High And Low Voltage Range: Dc8-100v Voltage Detection Range:dc8-100v Working Current:less Than Equal 15ma Display Mode:lcd Screen Detection Accuracy: Refresh Speed 500ms/time Note: There Are Two Types Of Lithium Batteries (ternary Lithium L And Iron Lithium F). The Following Method Tell You How To Distinguish Them; First, Fully Charge The Battery. The Saturation Voltage Of A String Of Ternary Lithium Batteries Is Dc4.2v, And That Of A String Of Iron Lithium Batteries. The Saturation Voltage Is Dc3.6v; For Example: The Saturation Voltage Displays 84v (20 Strings), This Is A Ternary Lithium Battery, And Then Select The Parameters According To The Setting Mode Of The Ternary Lithium Batte