Voltage Detection Range:DC8-100V Working Current:less than equal 15mA Display Mode:LCD Screen Detection Accuracy:±1% Refresh Speed 500MS/Time Note: There Are Two Types Of Lithium Batteries (Ternary Lithium L And Iron Lithium F). The Following Method Will 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 Battery. Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Type:B:6133A Blue Screen, colors appear only when used Colour:As Shown Material:Plastic Package Contents: 1 * Battery Capacity Display Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. 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 Intuitive Display, And Easy To Operate