Features： 1、By turning the real-time voltage value can accurately determine the amount of remaining power, convenient for customers to drive. 2、The real-time voltage value can accurately judge whether the lithium battery is damaged. 3、The quality of lithium battery can be judged by the value of turning voltage to facilitate the factory to purchase qualified lithium battery. 4、No matter Lead-acid batteries, lithium batteries, water batteries, dry batteries. 5、All kinds of electric vehicle (12V to 99V) can be automatically identified and displayed in real time. 6、Through the voltage number to determine the fault of electric vehicle, twice the result with half the effort. 7、Eliminate analog power display (a few small lights), real-time digital voltage display, intuitive, convenient, can accurately judge the remaining power, mileage. Specification： Condition: 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% 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: 1.8 m 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. 4 wires : yellow is for voltage display wire, connect with electric bike power positive. 5 wires: blue wire connect with controller power lock output wire, yellow wire connected with controller electric switch input wire power positive, 6 wires ; yellow connected with power positive, blue wire and white is is function wire(can work as reverse switch, horn switch, cruise switch, power lock and so on) 7 wires: yellow connected with power positive, blue is share wire, middle gear for 3 gears , white is high gear, brown is low gear. The above is common wiring way, if need made to order please connect with salesperson. Battery common sense: For this display Battery is measured by voltage. this throttle can work for any electric bike under 84v with lead acid battery, lithium battery, water battery, dry batter and so on. The throttle with automatically identify voltage. Due to the difference of battery material, battery conditions ( new or old, ),controller data , the battery voltage reaction will be different, so the data bellow will have deviation. Customers please check according to your battery to get your battery data. For 12v electric bike, max voltage is about 12.6v, mini is about 9v or higher, For 24 electric bike, max voltage is about 29.4v, mini is about 21v or higher, For 36v electric bike, max voltage is about 42v, mini is about 29v or higher, For 48v electric bike, max voltage is about 54.6v, /58.8v, mini is about 40v or higher, For 60v electric bike, max voltage is about 72v, mini is about 49v or higher, For 72v electric bike, max voltage is about 84v, mini is about 60v or higher, For other electric bike with higher voltage there should be a voltmeter installed. 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 max 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