ITEM NAME:E-Bike Thumb Throttle LCD Digital Battery Voltage Display Switch Handle FinS Ew Description: 1 lead acid battery, lithium battery, water battery, dry battery . 2 is not divided into various types of electric vehicles (12V to 99V general), can be automatically identified, real-time display. 3 eliminated analog power display (several small lights), real-time digital voltage display intuitive, convenient, can accurately determine the remaining power, mileage?? Judge electric vehicle fault by voltage number, get twice the result with half the effort. Green is for throttle hall signal, red wire is for throttle +5V, black is negative wire; please connect according to controller function wire, 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.This throttle can work for any electric bike under 84v with lead acid battery, lithium battery, water battery, dry batter and so on. 1 lead acid battery, lithium battery, water battery, dry battery.