Features: 
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 the real-time voltage value can accurately determine the amount of remaining power, convenient for you to drive.
5. The real-time voltage value can accurately judge whether the lithium  is damaged.
6. The quality of lithium  can be judged by the value of turning voltage to facilitate the factory to purchase qualified lithium .
Item Type: E-Bike Thumb Throttle
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 , lithium , 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 universal accessories
Terminal length: 1.8 m by default
Green is for throttle hall signal, red  is for throttle +5v, black is negative ; please connect according to controller function , U can not just match same color , if wrong connected that will damage your controller and throttle.
4 wires : yellow is for voltage display , connect with electric bike power positive.
5 wires: blue  connect with controller power lock output , yellow  connected with controller electric switch input  power positive,
6 wires: yellow connected with power positive, blue  and white is is function (can work as reverse switch, horn switch, cruise switch, power lock and so on)
7 wires: yellow connected with power positive, blue is share , 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.
common sense:
For this display  is measured by voltage. this throttle can work for any electric bike under 84v with lead acid , lithium , water , dry batter and so on. The throttle with automatically identify voltage. Due to the difference of  material,  conditions ( new or old, ),controller data , the  voltage reaction will be different, so the data bellow will have deviation. Customers please check according to your  to get your  data.
For 12v electric bike, maximum voltage is about 12.6v, mini is about 9v or higher,
For 24 electric bike, maximum voltage is about 29.4v, mini is about 21v or higher,
For 36v electric bike, maximum voltage is about 42v, mini is about 29v or higher,
For 48v electric bike, maximum voltage is about 54.6v, /58.8v, mini is about 40v or higher,
For 60v electric bike, maximum voltage is about 72v, mini is about 49v or higher,
For 72v electric bike, maximum voltage is about 84v, mini is about 60v or higher,
For other electric bike with higher voltage there should be a voltmeter installed.
Installation method: 3 wires, red  for positive, black  for negative, green  for signal, and yellow  for power supply positive.
How to maintain the lithium :
Since lithium  has different materials (The ternary lithium , lithium manganate , lithium iron phosphate ) so we cannot give exact number to measure the balance  level. Customers please measure the remaining  level according to your  indication and maximum voltage number. Usually please charge when there is 30% left, and please finish charging when reach to 80% of . This is best for . Any lithium  has no memory, you can charge anytime, use anytime, that will not influence the life of . Please donot overcharge or overdischarge. Please totally charge and discharge for every two month, that will maintain the  at maximum.
Package List: 
1 x E-Bike Thumb Throttle
1 x Manual