Error 4 stop hub motor working

Posted by on May 25, 2020 Comments Off on Error 4 stop hub motor working

Q: I bought a hub motor few months ago. Display error 4 is your brushless controller LCD? And I have a problem in the moment, because I install it and when I start to move the quad appears all the display the error 04 and a symbol of a tool, I had seen at the forum what’s the error meaning, but I think it’s something different because it had full charged electric bike battery pack.

A: How long did you use this electric bike battery pack ?

Q: It’s new. I have used ones for test the hub motor. It start full at the display but 100 meter later appear the error, hold on, then when appears the error, 10 minutes later in the display appear again full the electric bike battery that I use is a 4 lead batteries of 12V 45 Ah

A: Is your electric bike battery is 48V? That’s correct. The issue is battery. Do you have volt meter?

Q: Yes. I can find one.

A: Ride this bike and use volt meter to test the voltage of electric bike battery. If the voltage will drop down. The problem comes from electric bike battery. If the voltage drop down to 42V, the error will appears. If you don’t ride, the will display appear full.

Q: I’m trying to start the hub motor without any load. It works for 6 hour more or less.

A: How many current does your electric bike battery can offer? 10A , 20A or larger. You should use volt meter to measure the voltage when you load this hub motor.

Q: I bought 4 batteries of 12 V 45 Ah

A: Sometimes new electric bike battery is in stock for a long time. Even if No use. Also can need this issue. If you don’t load our hub motor, is there no error display?

Q: No, if it start to work freely, it work for 6 hours. How I use the volt meter to measure the electric bike battery? Working the hub motor ?

A: Connect red, black wires of volt meter to the positive and negative when the engine works,
watch the voltage on volt meter.

Q: Let me prove it, so I have to connect the positive of the battery to the positive of the engine and as well to the positive of the volt meter, and the same thing whit the negative ones, then star to work the quad watching the volt meter and if the voltage goes down the issue is in the battery.

A: Connect wires as before. Just add two wires from voltage meter. Red wire of voltage meter is connected to the positive of battery. The black wire is connected to the negative of battery. Make sure it on the VDC voltage position (=200VDC or ..)

Q: How volts it has to show to work properly? More than 48V ?

A: 42-60V

Q: Ok, so if the battery is full it has to show around 60V?

A: No, that depends on what type of battery. If LiMn2o4 is about 54V, LiFepo4 is about 58V. Lead acid is about 54V. When you test, the voltage will drop down. This electric bike battery is not good.

Q: I let you know if something different happen.

issue about electric bike kit battery

Posted by on May 25, 2020 Comments Off on issue about electric bike kit battery

We purchased an electric bike kit including motor controller, hub motor wheel, throttle, brake lever and with 36V 10AH bottle style Lithium Ion electric bike battery that used for testing 36V solar charger from one supplier, not from leaf motor. After charging this electric bike battery for 10 hours by better solar power, full charged, we rode the bike, but hub motor wheel only run about 8km.

We use a ampere meter in series to electric bike kit system, powered on and rode it. We got the current is about 5A. The speed is 257RPM.We use 26” hub motor wheel.

We calculate the speed is about 32Km/per hour.
See below formula:
（3.14×26”×0.0254）× 257RPM × 60 minutes ÷ 1000 (m-Km)=32km

If this is 10Ah battery, per hour lost 8ah.We can use 1.25 hours.
See below formula:
10Ah ÷ 8ah/per hour= 1.25hours

We think full charge this electric bike battery per time, the hub motor wheel can run about max 40 km. 32km/per hour × 1.25 hours = 40 km

There is definitely a problem with this electric bike battery, I’m not sure whether electric bike kit is because of the solar charging or our testing, or if it has a fault. But I need a replacement electric bike battery asap, because we don’t have any more 36v electric bike battery, and we sold 1 set of electric bike kit with lithium battery last week. I think BMS inside this electric bike battery no problem. The problem comes from the li battery cells. Maybe this electric bike battery had stayed in warehouse for a long time and haven’t charged it. It will make the electric bike battery cut down the achieve distances and use life.

So if solve this problem and let my hub motor to work asap, only replace all cells or replace new electric bike battery.

How connect electric hub motor controller wires

Posted by on May 25, 2020 Comments Off on How connect electric hub motor controller wires

Q: Now that I understand the purpose of these wires, I need to know exactly how to connect bike conversion kit wires.
1. “you could use a switch(on/off)to short pink and black”
1.1 What kind of switch? Is it included this bike kit or I have to buy it?
1.2 If I have to buy a switch, what are the characteristics of it? How do I connect pink/black wires to the switch?
1.3 If so, do I need to buy additional wires to connect pink/black to the switch? If so – what are the characteristics of it, wire resistance/diameter?
1.4 These pink/black wires are connected to a plastic connector
Do I need to buy another connector to connect my new hub motor ?

2 “use yellow and brown wires coming from the throttle to control your bike kit cruise.”
2.1 Again-how would I do that? Do I need to connect yellow/brown wires somewhere on the hub motor controller, is so – how?
2.2 Please note that these wires don’t have any kind of connector attached – am I suppose to connect them ?

3 “put the green wire to “+” and the grey to “-“, your LED on your throttle will light”
3.1 Where are the “+” and “-” you are referring to? Is it on the battery itself, or controller, or elsewhere? (for example: battery itself doesn’t seem to have open +/- sockets – other than the one used by the supplied cable)
3.2 Can I connect green/grey permanently (so that LED always shows the battery status), if so – how would I connect? Where would I connect them to exactly – controller or battery?
3.3 Again please note that green/grey wires are not attached
to any connector, just “bare” wires, so I don’t understand how can I connect them?
If you have any additional photographs and/or drawings, please share them also. If I need to buy
additional parts – please let me know what they are.

A: Don’t mistake with the positive and cathode of your bike kit battery to hub motor controller.(red and black battery wires).It doesn’t matter about making a mistake with other wires.
Don’t worry. Short any thin wires, it doesn’t burn your controller.
1.Cruise: when your motor is running, connect the pink wire to black wire(use a wire to connect pink and black wire) or you could use your brake lever to test this function. When your brake, it will cruise, when your loose your brake level, it will cancel cruise function.
2.This switch just have on/off function, you could buy other switches in your market
3.You should use a wire to connect bike conversion kit, it doesn’t matter about wire resistance / diameter, is this wire, no current.
4.You could use spare connector: yellow connect pink wire, brown connect black wire (C&Z),when your motor is running, press this red switch, your motor will cruise as the same speed.
Put the green wire to battery “+”
Put the grey wire to battery “-”
The Led will light, try it as I said, it doesn’t burn anything.
In fact, it’s very easy to do it, for example, you could use your
handle brake (two wires) to make a female connector connect any connector (white & black, pink & black)from hub motor controller.
If possible, you could use a software “e-drawing” to open our 3D about this hub motor controller.