Category Archives: bike motor controller - Page 2

48V 52V 1000W electric hub motor controller with LCD screen

Posted by on December 7, 2022 Comments Off on 48V 52V 1000W electric hub motor controller with LCD screen

48V 52V 1000W electric hub motor controller runs very well. It gives the performance we hoped for.

Nevertheless, we are struggling connecting the regen brake. I would very much appreciate if you could help us to figure out how those wires are to be connected in order to have the engine giving us regen brake when cruising downhill.

Let me summarize:
I assume the yellow, green and red colors represent the colors of the knobs on the switch for each function right?
We have managed to have cruise and reverse working, but we do now know how to connect the Regen brake to the switch to enjoy electronic brake from the motor.

There are 4 cables from the controller for those 3 functions:
Black
Green
Blue
Yellow

When we connect green cable to blue or black the cruise works.
When we connect yellow cable to blue or black the reverse works.

But how do we have the Regen Brake working?
Can you please what color of the cable is for the regen? (is it blue?) and what other color from those 4 should it be connected with to make it work please? Thank you.
I truly would appreciate your help, we do not need reverse on a bike, but the regen would be very welcome.
Thanks a lot, in advance for your help.

How to use three button switch?
1.We cut off that yellow wire.It’s for reverse/backward.This function is very dangerous for e-bike. If for e-tricycle,hope this reverse function,just re-connect this yellow wire.
(We cut off yellow wire.. so no reverse/backwards function for e-bike. If install motor on tricycle, also need this reverse function,please re-connect this yellow wire. Reverse works)
This yellow button be left / middle,motor works forward. Be right side,motor works backward / reverse… (Cut off blue wire,No reverse function)

2.Green button is used to control cruise, while motor is running,also over some speed,example: over 1/3 max speed,at this time,press green button one time,then loose throttle,LCD display “C”,motor will works the same speed. Re-press this green button one time or press brake lever or turn throttle to max,motor will stop.

3.Red button be up,regen on. Be down,regen off. This regen will charge battery while press brake lever (We cut off red wire..)No recommend use this function.

need bike motor controller replacement

Posted by on February 7, 2022 Comments Off on need bike motor controller replacement

I would like  to know if you sell  the bike motor controller only, because i damage mine by over voltage  and i need to replace it.
Motor and LCD are still good. So please, i just need motor controller at the moment.
 
The photo I’m sending from a copy of a invoice is just to give you full details of address info, the invoice is from other kit , not this.
 
Can you make better price selling without LCD display ?
 
I will buy more parts in future from you for sure. I have new projects in my mind.
 
I already sent i e-mail today asking for the same model but with 60v (if this option is possible), if not possible no problem ,i will need  to have another 48v  controller, and  change to a 48v battery again..
 
Im sorry, I said in last e-mail i had 8 x 12v lead battery, but my mistake,because  in fact they are 10 bat, 12 amps +or- ,and 12 volts each. ( 2 box with 5 batt. each )
 
A lot of weight to carry, but i made already about 350 miles so far without any major problem…not bad homemade electric scooter…spend some money but i love this installation process, its a fine hobby for me. I ride it most of the time inside private property to avoid problems. I don’t go fast, but uphill the controller burn…stupid mistake of mine..i push the controller limits.. many amps and some extra volts burn controller, almost in the end of the project..
 
I’m your costumer for some time and i prefer your controllers because they  are good and have regen break, very useful for me because i live in high place in Portugal, full of up and downhills.  I also prefer the original parts from you because i know they will fit perfect on the Lcd display that i already have
 
If yes , how can i pay you  excepting credit card ?
I can make bank transfer if you like, or another safe method for both.  If i buy only controller i will pay less tax here also, less money in invoice is better for me because last time i payd a lot, also because motors are heavy , but only controller will be good, its lightweight for the post tax. If possible,  don’t mention watt power in invoice please, The hub motor has 1000/1500 watt power.. i cant remember exactly, because sometimes display already  showed 1200, 1300 watt instant motor power  . maybe 1500w motor…not sure..

14″ e-bike stopped and waited for a moment

Posted by on January 15, 2022 Comments Off on 14″ e-bike stopped and waited for a moment

Q:Ride ebike on the flat road,no problem,but when I climb the hill,it will stop and wait for a moment,it still can re-start and have the same problem at once.

A:The temp inside the controller is too high and in order to protect this controller,should wait for a moment until the temp is lower than protective temp.

Solve:Use more MOS-FET brushless controller.

Now our 48V brushless motor controller has 15-MOSFET.More MOSFET afford temp and the temp rise very slow.It can solve this problem.

In market,always use 9-MOSFET to drive 48V 1000W hub motor.This kind of brushless controller is easy to be broken because of high temp will break MOSFET.

36V 750W / 48V 1000W 14″ brushless gearless hub motor is make up of aluminium hub,aluminium cover,magnet,rotor,winding,axis etc.Mounted 14×2 1/4~2 1/2″tyre,load approximate 300lb.Motor speed,we can customize according as your actually need.
It’s used for e-bike,e-scooter.

electric bike kit for e-bike

Posted by on January 15, 2022 Comments Off on electric bike kit for e-bike

Q:I want to buy for my Merida cross 5100:
-Front bike hub motor 48 V/ 1000W
-48V Thumb Throttle
-Battery LEV-High Speed 4812
– wires to throttle and battery.

But I have the questions:
1.I need spokes for 28″ wheel. Are they attached to motor, and how much are they if not?
2. The battery could be fixed only on trunk or on frame too?
3. I`m living in St. Petersburg, Russia. What type of delivery is most economic and how much it will be?

Answer 1:The most economic is that ship by international parcel.It’s much cheaper than EMS.We often use this way to ship packages to Russia.But It takes long time to ship and hard to track the status of package.
About your order,I want to give your some suggestion:
1.This 48V/1000W motor is good.Most of our customers have used this motor more than 3-5 years and never meet problem.
2.Thumb throttle,No problem
3.Li-Battery costs expensive,but its life is short.Though many battery companies called their batteries have high quality,it’s not true.Most of Li-batteries will meet problem in 1 year.For example:your notebook PC’s li battery.
Do you have brushless controller to drive this 28″ hub motor?

Answer 2:spokes may in attachment hub motor
please email to leafmotor:sales@leafmotor.com
You also order electric bike conversion kit on leafmotor’s internet shop.
And DIY your favorable bike kit.

16 inch 36V 250W front electric hub motor kit

Posted by on January 15, 2022 Comments Off on 16 inch 36V 250W front electric hub motor kit

With the price of gasoline rise and pollution,a bicycle is good for an environmentalist.

Riding a bicycle is a great non-polluting way to get exercise and get around, but a steep hill or a long commute can turn into an unpleasantly sweaty affair. Converting a bicycle into an electric bicycle can create a vehicle with all the advantages of a regular bike, but with a little power assist to get past the disadvantages. You can assemble a set of components on your own or buy a matched electric bike conversion kit!

Compare to buy a new electric bicycle,order an electric bike kit to convert your existing common bicycle to be electric,less cost.

Leafmotor has one new type of e bike kit for old men and children.
It’s a 16″ front 36V 250w electric bike kit that includes:
1.16″ 36V 250W front casted brushless gearless hub motor is fit for 100mm front fork.
2.36V 250W 6-MOSFET brushless motor controller working with LCD,display speed,mileage,battery gauge..
3.Twist throttle or thumb throttle(default is twist throttle)
4.Brake lever
5.Three button ON/OFF switch is used to control front&rear lights,horn,cruise…

This hub motor is make up of aluminium hub,cover,magnet,rotor, winding,axis etc.The net weight is about 5.13kg,use 16×2 1/4″tyre. Motor speed,we can customize according as your actually need.

Bike kit=bike motor+motor contorller?

Posted by on January 14, 2022 Comments Off on Bike kit=bike motor+motor contorller?

With gasoline price ↑ day by day,more and more bike fans from Europe and North America would like to convert their bicycle into electric bicycle, because of some reasons,it’s necessary to convert by their selves:
1.Ride a common bicycle for a long distance is very tired,hope have an electric bicycle
2.Buy an electric bicycle,it’s too expensive and single type is not everyone likes;
3.Buy a bike kit,the best choice.Cost less and still can use common bicycle

1 set of bike kit includes: 1 pcs of bike motor with rim,1 set of brushless motor controller,1 set of throttle,1 set of brake leaver,1 set of switch,1 set of battery and front&rear lights,freewheel,disc brake…

Leafmotor has all kind of bike kits are fit for Europe and North America.
Eg:20″ 24″ 26″ 27.5″(650b) 700c 28″ 29″ 27″ rim front & rear wheel with 36V 750W&48V 1000W motor,these 36V kits work with 12-MOSFET motor controller and 48V works with 15-MOSFET brushless controller,have thumb throttle and twist throttle for customers to choose.Front kits are fit for standard 100mm front fork,rear kits are fit for standard 135mm rear frame fork.Speed:20m/h.Rear motor can be install disc brake and front motor should use V-brake.These kits are fit for North America,but now more and more Europe fans like these powerful kits.

If you are in Europe,we still suggget you order 250W motor that is fit for your local law.
Eg:20″ 24″ 26″ 27.5″(650b) 700c 28″ 29″ 27″ rim front & rear wheel with 24V 250W&36V 250W motor,these kits work with 6-MOSFET controller,LCD.This LDC can display speed,battery gauge,milage..Still have thumb throttle and twsit throttle to choose.Both of front and rear motor can be installed disc brake.And both fit for standard fork.Speed:15m/h

Bike kit>bike motor + motor controller..

BLDC motor control technology

Posted by on January 7, 2022 Comments Off on BLDC motor control technology

    In 2005, BLDC motor controller was developed, improved and upgraded to address the existing weaknesses in several electric vehicles, vehicle design to meet the consumers and the increasing demand for vehicle performance. It avoids the same maximum rated power output of a long, sustained the same frequency to reduce the impact of the motor, motor coordination and other systems, electric cars and stable work, greatly extending the life of electric vehicles.

    Equipped with a BLDC motor controller for electric vehicles in the cycling process, the inverter controller and inverter composed of high-efficiency motor power system, take advantage of low current, high-torque theory, in the process of riding in a timely manner according to traffic and load to adjust the output power .

    This technology works, the electric car start, climbing, a small motor current, torque, and increases the climbing ability and more power; and on a level road, the standard load driving the motor to a small current, high efficiency work, so fast, low power consumption, extend the continued line mileage.

    Install the BLDC motor system of the electric car as long as a power supply and speed, the car was immediately driven, and demonstrated a remarkable strong force, and unlike most of the electric car start when they “struggle” was a difficult time crawling This is the BLDC motor technology advantage.

    In July 2005, the Group introduced three BLDC motor MACAT electric cars, are very popular. Taiwan Tianjin growth of electric cars with electronic features brushless motor control system — electronic CVT systems, but also uses the same technology. This new motor system increases the motor torque constant, reducing the overload point, the motor phase current context, to effectively improve the speed of the motor rated load point.

    2007 by Locomotive Co., Ltd. Qing long developed similar to the motorcycle gear with three power electric cars is based on such frequency control technology.

    This technology effectively improve the electric vehicle drive system features a certain extent, solve the electric vehicle the problem of poor climbing ability, and easy manipulation of the user, complete electric car downshift speed and overall performance has made great breakthroughs .