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  1. S

    REPLACING EBAY EBIKE WHEEL

    Hello, I bought a rear 48-volt ebike conversion kit from eBay a few months ago. After a few rides, I noticed the wheel was out of true and the spokes nipples were rusting. After, trying to true the wheel some of the spokes nipples broke due to being rusted and cheaply made. The wheel that came...
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    WELDING STRENTH FOR EBIKE BATTERY

    Hello, I am building my first ebike battery. I would like a few inputs: I 65 cells Samsung 30Q and Panasonic NCR 18650 PF. I will be building a 48 Volt battery with 13 Cells in series and 5 cells in parallel, I will be placing the cells in a hailong battery case that can hold 65 - 18650 cells...
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    EBIKE BMS MODIFICATION

    I bought a BMS from Aliexpress for my 11.6 ah - 48-volt e-bike battery. My battery is made of Panasonic NCR18650PF, I bought the BMS from Aliexpress here is the link...
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    NEED HELP CHOOSING BMS

    Hello ebikers I am shopping for a BMS for my 48 volts (11.6ah) battery made of Panasonic NCF18650PF. I will be using the battery with my 1000 watts motor (My controller is a sinewave 48 volt with a max output current of 26 amp). I am a newbie with BMS. Does how many MOSFETs is a BMS made of...
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    NEED HELP FIXING MY EBIKE BATTERY (BMS)

    Hello Ebikers, I am running into some issue with my e-bike 10.4 ah - 48-volts battery (My battery pack is made of Samsung 26F). My e-bike has a sine wave dual voltage ( 36volts /48 volts) controller rated at 25 amp max discharge current. Lately, I was riding my e-bike and I notice on the...
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    LOOSE EBIKE DISC BRAKE HOLE

    Hello Ebikers, I am having an issue with my rear e-bike wheel. I bought a rear wheel e-bike conversion kit from eBay (48V 1000W Electric Bicycle Cycle E Bike 26"Conversion Kit Hub Motor Rear Wheel). The disc brake holes on the wheel are loose I replace the standard screws that came with the kit...
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    What Fuse to choose for my 48 volt - 1000W ebike?

    Hello Ebikers I own an e-bike with a 1000 watt motor, 25 amp sinewave Controller and a 48 volts- 11.6 ah battery made of Panasonic NCR18650F, my battery has a 30 amp BMS. I mostly use the throttle on my e-bike mostly to get from my home to work and back from work to home. That is about 10 miles...
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    NEED BMS FOR MY BATTERY (DOWN TUBE- HAILONG BATTERY CASE)

    Hello ebikers The BMS of my battery pack is defective and need to be replaced. I own a 48volt (11.6ah ) battery pack made with Panasonic NCR18650PF, I use my pack on a 1000 Watts e-bike motor with a 30 amp controller that output 1000w constantly. After testing my pack I determined the BMS was...
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    NEED HELP FIDING SPOKE FOR MY EBIKE WHEEL

    One of the spoke nipples of my electric bicycle broke when I was truing my e-bike wheel. I bought the wheel on eBay here: http://www.ebay.com/itm/48V-Ebike-Cycling-Electric-Bicycle-Motor-26-Conversion-hub-Kit-Front-Wheel-1000W-/252505532057?hash=item3aca80a699:g:CUQAAOSwNRdX2PLf Can you please...
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    PEDAL ASSIST ISSUE WITH SINEWAVE CONTROLLER

    My e-bike has been giving some issue lately. I lately had a car accident during which my e-bike was damaged; I purchased a new e-bike conversion kit and mountain bicycle. I also purchased a KT3 LCD and sine wave controller due to my injuries I am not pedaling and have been using the throttle. I...
  11. S

    Ebike Hub 3 phase wire melting issue

    I am having a recurring issue, the 3 phase wire of my e-bike keep melting. I had them set up into a three wire block (see picture). I own a dual voltage e-bike 36v/48v e-bike (KT3 e-bike LCD) and my controller (KT36v/48v) is rated for 36v/48v 22 amp max current. As of now, I have a 36volt 11ah...
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    Pnasonic 18650 Vs Samsung 26F Vs 18650 China Cell

    I am considering buying a 48 volt battery pack to replace my 36 volt battery pack from the same seller on Aliexpress. I am upgrading my controller from 36 volt 22 amp to a dual volt controller 36 volt/ 48 volt 22amp; my ebike motor is compatible with both 36 volt and 48 volt. Can you please tell...
  13. S

    36 Volt VS 48Volt BATTERY PERFORMANCE

    I own an electric bicycle (Mountain bicycle I converted to an ebike). The conversion kit I purchased was advertised as 36 volt on eBay; I did some research and found out that the kit can be run at 48 volt. I bought a KT3 ebike LCD display and a KT 36V/48V controller (dual voltage controller...
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    Measuring Remaining energy in ebike LifePO4 battery

    I converted my mountain bicycle into an ebike. I use a 36 volt 12 ah LifePo4 battery with my bicycle, it has been working fine. I lately replaced the stock sw900 lcd display and controller that came with my conversion with a KT LCD3 and a 36 volt KT controller, they work wonderfully. The KT LCD3...
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    How to Waterproof bottle Ebike Lipo Battery?

    I own an electric bicycle that I used as my daily drive. I have a bottle aluminum 36v 10ah battery that I would like to waterproof, I sometime have to ride under the rain. I would appreciate any concrete suggestion you may offer. Please be detail by providing link or video (if possible) on how...
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    NEED HELP REPLACING LIFEPO4 BMS

    I purchased a 36v 12 ah LifePO4h battery pack from Ebay a while ago. The battery charge fine but won't send charge to my ebike. My ebike has a KT36ZWSRL_ZC14ZL(36Volt- 26 Amp). I opened the pack and found out that the BMS circuit burn (see picture). I would like to buy a new bms for my battery...
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    NEED HELP FIXING MY EBIKE

    I own a ebike (see picture), I converted my mountain bike into an ebike it has been working fine for a while until I was riding I saw on the LCD display SW900 of my ebike error 06 according to user manual this mean battery undervolted. I own a 36 volt 12 ah lifepo4 battery, I assumed the BMS...
  18. S

    Need help fixing lifepo4 battery

    I own a 36 volt 12ah lifepo4 battery. I was little careless when checking if the battery would fit in the triangle frame of my mountain bike. I small part of the battery cover had a cut, I can see the white paper the manufacturer use to cover the cell from the cut. The white paper has tiny cut...
  19. S

    Frame bag for large LIFEPO4 battery

    I own a LIFEPO4 36V 12 AH battery that I use with my ebike. I currently have it mounted on the rear rack. I would like to move it to the front triangle frame of my ebike. My bicycle does not have a suspension in the front triangle frame. Therefore, there is plenty of room for a triangle front...
  20. S

    Need help installing pedal on a bike without lock ring

    I have a mountain bike to converted into an electric bicycle. However, the bicycle crank does not have a lock ring to install the pedal assist sensor. I can install the magnet disc but not the sensor due the lack of lock ring. I would appreciate any suggestion. I attached picture of the the...
  21. S

    Need Help Choosing the right lifepo4 battery for ebike

    I own a mountain bike with front and rear suspension that I converted to an ebike, the controller of my ebike is rated at 36 volt with a 22 amp controller. I currently own a lifepo4 battery pack 36volts with 10ah that I am going to return to the seller because I am not getting the desired range...
  22. S

    ADVICE FOR CHARGING SLA 48 VOLT FOR 36 VOLT USE

    I own four 12 volts 9amp sla battery. I have a 36 volts ebike and 48 volts sla charger. I will only be using three of these batteries with my ebike since the controller is rated for 36 volts. I would appreciate any opinion with this issue . Since I will only be using 3 out of the four 12 volts 9...
  23. S

    EBIKE LIFEPO4 BATTTERY UNDERVOLTED

    Hello I own an electric bicycle. I recently bought a LIFEPO4 36Volts 10AH for my bicycle. My ebike controller is rated at 22Amp and 36V. I have a lcd screen SW900, it display the speed, milles travel, the watt and battery consumption. However, I have an issue the battery indicator has 5 bars to...
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