The following instructions are general and not specific to a single product

The following instructions are general and not specific to a single product,

Please consult customer service for specific product specifications

Terminals and wire lengths can be customized, and all handles are interchangeable

Please leave a message indicating the required voltage value for the light display. The digital display shows a universal voltage range of 12v to 84v, and there is no need to leave a message indicating the voltage value

Advantages of this conversion:
1. Regardless of lead-acid batteries, lithium batteries, water batteries, or dry batteries
2. Regardless of various models of electric vehicles(Universal from 12V to 99V)Both can be automatically recognized and displayed in real-time
3. Eliminate analog power display(A few small lights)Real time digital voltage display, intuitive and convenient, can accurately determine remaining battery life and driving mileage
??4. Judging electric vehicle faults through voltage numbers can achieve twice the result with half the effort


Battery knowledge:This controller uses digital display voltage to directly obtain the battery level. Please judge the remaining battery level based on the voltage V of your electric vehicle battery, or determine whether the battery is damaged or not based on the fully charged voltage. It is important to detect and repair the damage as soon as possible. Previously, the battery level display light was simulated by collecting battery voltage to display the battery level(Taking the display of three lights on a 36V battery as an example, from 39V to 42V, it shows that the battery is fully charged and all lights are on. From 37V to 39V, one light is off, from 34V to 37V, the second light is off, and from 31V to 34V, the last undervoltage light is on. This method can only be vague because it cannot determine how much voltage is inside, and this method of collecting voltage through data collection is no longer suitable with the advancement of battery technology)Due to different battery materials, processes, and discharge platforms, there is uncertainty in the way voltage is collected. The voltage digital display handle completely solves this problem. By collecting battery voltage in real time and displaying it in real-time, it is easy to determine how much mileage one can travel and whether the battery is damaged through digital changes

Voltage digital display knob user manual
1、 Characteristic Introduction
Qimengda voltage digital display handle completely replaces analog power display handle, automatic recognition of 12V to 84V electric vehicles, real-time display of voltage, accurate determination of battery power, convenient and practical!
1. By adjusting the real-time voltage value, it is possible to accurately determine the remaining battery level, making it convenient for customers to drive!
2. By converting the real-time voltage value, it is possible to accurately determine whether the lithium battery is damaged, which is convenient for after-sales service!
3. By converting the voltage value, the quality of lithium batteries can be judged, making it convenient for factories to purchase qualified lithium batteries!
4. Automatically identify electric vehicles with voltage below 100V, which can be used universally, facilitating factory procurement, saving capital and management costs!
5. The ordinary electric display handle only has 4 wires, which is convenient for workers to install and saves time!
6. The conversion of digital displays, which is currently not available in the market, can seize the opportunity and become a new selling point
2、 Precautions
Please pay attention to the wiring sequence when installing by non professionals, and do not connect the wrong wires, otherwise it may cause Hall and LED tubes to burn out
3、 Basic parameters:(According to different battery materials, new and old, batches, and voltage values, there may be differences. Please test a few times to obtain the parameters of your electric vehicle battery,)
12V electric vehicle, with a maximum voltage of approximately 12.6V or slightly higher, and a minimum voltage of approximately 9V or slightly higher
24V electric vehicle, with a maximum voltage of approximately 29.4V and a minimum voltage of approximately 21V or slightly higher
36V electric vehicle, with a maximum voltage of approximately 42V and a minimum voltage of approximately 29V or slightly higher
48V electric vehicle, with a maximum voltage of approximately 54.6V or 58.8V and a minimum voltage of approximately 39V or slightly higher
A 60V electric vehicle with a maximum voltage of approximately 72V and a minimum voltage of approximately 49V or slightly higher
A 72V electric vehicle with a maximum voltage of approximately 84V or slightly higher, and a minimum voltage of around 60V
Electric vehicles with higher voltage are already equipped with voltmeters
Installation method:Three handle wires, red handle positive pole, black handle negative pole, green handle signal wire, and yellow handle power positive pole wire alone,
Qimengda Technology Co., Ltd


Electric vehicle voltage display knob
brand:Qimonda production area:Henan, Zhoukou
Grade:Original genuine first-class goods matched with the whole vehicle manufacturer for use

model:S series(5V-99V automatic recognition of electric vehicle voltage)
efficiency:≥98%
Hall level:Linear Hall Effect High Quality Rubber Imported LED Digital Display Light
working voltage :Switch to DC0.8V-4.2V
Electricity display:Regardless of lead-acid batteries, lithium batteries, or voltage, they can all be automatically recognized(12V, 24V, 36V, 48V, 60V, 72V electric vehicles can all be used directly, and some 84V electric vehicles can also be used)
quantity:1 payment(Right turn handle+left handle cover)
Specifications:Universal accessories for electric vehicles
Terminal length:1.8 meters, customizable,
terminal:Each manufacturer's plug cannot be the same, and those that cannot be matched can be cut and directly connected, supporting customization


The green line is the Hall signal line of the handle, the red line is the positive 5V of the handle, and the black line is the negative pole(Same below)Please make sure to compare the functional wiring of the controller and do not simply match the color wiring with the controller. Once connected incorrectly, it can cause damage to the controller or rotor

4-core wire:The yellow line is the voltage display line, connected to the positive pole of the electric vehicle power supply
5-core wire:The blue wire is connected to the controller switch lock output line, and the yellow wire is connected to the positive pole of the controller switch input power supply,(Power switch, controls the vehicle's power supply).
6-core wire:The yellow wire is connected to the positive pole of the power supply, and the blue and white wires are functional wires(Reverse switch, horn switch, cruise switch, power switch and other switches).
7-core wire:The yellow line is connected to the positive pole of the power supply, the blue line is the mid-range of the three common lines, the white line is in the high range, and the brown line is in the low range
The above are common wiring methods. If you have special requirements, please consult your dealer for a solution

After sales department:For personal modification purchases, as our store cannot guarantee that every customer has strong technical and circuit recognition capabilities, we will test each product's functionality before shipping. If you do not understand during installation, please contact us in a timely manner. If anyone makes installation errors, please contact us(The positive electrode and black wire will short circuit, damaging the display screen and Hall sensor. Connecting the positive electrode of the power supply to the positive 5V of the handle will burn out the Hall sensor)If electronic components are damaged and require repair, we can provide free repair, but customers will be responsible for the round-trip shipping cost. Replacement parts will be priced separately. Once an order is placed, it means acceptance of this after-sales condition. If you cannot accept this after-sales service, please do not purchase
Freight Description:Xinjiang, Xizang, Ningxia, Gansu, Inner Mongolia, Hainan, Guizhou, Yunnan, Guangxi, the three eastern provinces, Sichuan, Taiwan, Hong Kong, and overseas need to contact customer service to confirm that the freight is on sale, otherwise the seller has the right to refuse to ship
Sign in part:After receiving the goods, you can request to inspect them before signing for them
If the above cannot be carried out, you can sign for it normally first, and then hold the receipt in your hand after signing(Very crucial)Temporarily not giving the courier, and then requesting him to inspect the goods for you. At this point, since you have already signed for them, the courier has no reason not to allow you to inspect the goods
If there are no issues after inspection, you can hand over the order to the courier and the transaction will be successful!
4. If any problems are found after inspection, please use a pen to remove the signature, take a photo of the damaged part of the product, refuse to receive and call us, and then hand it over to the courier for handling
5. If the courier asks you to prove that the goods were not opened by him, please help the courier. After all, he is only responsible for delivering the goods. If there are any problems during the transportation of the goods, do not make it difficult for the courier. After all, the loss is compensated by the transportation company, not by him personally
6. Please be sure to pay attention to possible issues that may arise during the logistics transportation process:The integrity of the outer packaging does not mean that the goods inside are intact, nor does it mean that the goods inside have not been damaged by trampling or squeezing. The integrity of the outer packaging also does not mean that it is the original packaging when we shipped it, nor does it mean that it has not been unpacked and repackaged. Therefore, it is necessary to inspect it in person and clarify responsibilities. According to the postal law, the corresponding responsibility is transferred to the recipient after the recipient signs for it. If there are any problems after the courier leaves, according to the postal law, the logistics company has the right to be irresponsible and not compensate. Therefore, in order to protect your legitimate rights and interests, please sign for it in person and keep the evidence, so as to clarify responsibilities and facilitate solutions

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 max.