Feature: 1. No matter Lead-acid batteries, lithium batteries, water batteries, dry batteries. 2. All kinds of electric vehicle (12V to 99V) can be automatically identified and displayed in real time. 3. Real-time digital voltage display, intuitive, convenient, can accurately judge the remaining electricity, driving distance. 4. By turning the real-time voltage value can accurately determine the amount of remaining power, convenient for customers to drive. 5. The real-time voltage value can accurately judge whether the lithium battery is damaged. Specification: Condition: 100% Brand New Item Type: E-Bike Voltage Display Material: plastic Color: as picture shown Model: S series (5V-99V automatic identification of electric vehicle voltage) Efficiency: 98% or higher Hall grade: linear hall high quality rubber imported LED digital display lamp Working voltage: turn DC0.8V-4.2V Power display: regardless of lead-acid battery, lithium battery, regardless of voltage, can be automatically identified (12V, 24V, 36V, 48V, 60V, 72V electric vehicles can be directly used, some 84V electric vehicles can be used) Quantity: 1 pcs Specification: electric vehicle general accessories Terminal length: 2m by default Green is for throttle hall signal, red wire is for throttle +5V, black is negative wire; please connect according to controller function wire, U can not just match same color wire, if wrong connected that will damage your controller and throttle. Operation Instruction: Voltage digital display turn to completely replace the analog power display turn, 12V to 84V ev automatic identification, real-time display voltage, accurate judgment of battery power, convenient, practical. 1. The real-time voltage value can be used to accurately judge the remaining amount of electricity, which is convenient for customers to drive 2, by turning the real-time voltage value can accurately determine whether the lithium battery damage, convenient after sale 3, by turning the voltage value can judge the quality of lithium battery, convenient for the factory to purchase qualified lithium battery 4, automatic identification voltage under 100V electric vehicles, can be general, convenient for factory procurement, save the cost of capital and management costs 5. There are only 4 wires for ordinary electric display, which is convenient for workers to install and save time. Installation method: 3 wires, red for positive, black for negative, green for signal, and yellow for positive. How to maintain the lithium battery: Since lithium battery has different materials (The ternary lithium battery, lithium manganate battery, lithium iron phosphate battery) so we cannot give exact number to measure the balance battery level. Customers please measure the remaining battery level according to your battery indication and maximum voltage number. Usually please charge when there is 30% left, and please finish charging when reach to 80% of battery. This is best for battery. Any lithium battery has no memory, you can charge anytime, use anytime, that will not influence the life of battery. Please donot overcharge or overdischarge. Please totally charge and discharge for every two month, that will maintain the battery at maximum. Package List: 1 x E-Bike Voltage Display 2 x Keys