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  1. M

    Electric scooter works only wheel off ground?

    For those interested ( and those who said it couldn't be the controller :) , I fixed my scooter. I opened the controller and I found two bulged capacitors ( 40v 220uf ) which I replaced ( with 50v 220uf ) and it works fine now ! Thanks for the suggestions to isolate the problem and fix it :)...
  2. M

    Electric scooter works only wheel off ground?

    Relatively new (one-year?) good deepcycle 3x12V LAcid . Less than 50 cycles.. and never extreme deep drain of the battery, always stored them charged etc... The battery voltage (39volt) doesn't drop at all when full throttle and wheel on the ground, yet it drops to around 37-38volt when full...
  3. M

    Electric scooter works only wheel off ground?

    The battery voltage doesn't drop at all or very little when wheel on ground and when off ground it drops around (EDIT: around 38v) from 39v. Measuring volt at motor shows 38v off the ground, 1.5volt on ground and 0v with no throttle. The motor is brushed and I tried to give 36volt directly but...
  4. M

    Electric scooter works only wheel off ground?

    Hi I have an electric scooter/patinete that's 900w. Lately, it's acting strange. Basically, when the scooter is off the ground ( wheel in the air ) then it works fine when it's on the ground, it hardly spins if at all. My batteries voltage seem good. 13.2volt. So I cut the two power wires to...
  5. M

    Bafang hall sensor failure - go sensorless ?

    Hey guys thanx for all the answers.. Well I like pedaling a lot so locking the freewheel is not reallu an option for me ... I know the drag wouldn't be that much of a problem.. but I would prefer replace the hall sensors I guess and if I went sensorless I think I would go kinda mad if I was...
  6. M

    Bafang hall sensor failure - go sensorless ?

    Well I measured the voltage . Only one of them is going 0.5-4.5v the other is 0.5 and the other is 2v ?! I think I measured them correctly... There was a problem with my hall sensor connection and one wire wasn't wired perfectly so sometimes I had to move the hall cable to make the motor work...
  7. M

    Bafang hall sensor failure - go sensorless ?

    Hi all I had 2 out of the 3 hall sensor failed and now I am wondering if I should replace the hall sensors or buy a sensorless controller. I'd rather buy a sensorless controller really rather than opening and replacing the hall sensors but I've read most sensorless controllers don't start the...
  8. M

    Bafang stopped working?!

    Yes I checked that and the hall sensors seem fine.. THey all go from 0v to 5v
  9. M

    Bafang stopped working?!

    Hi all One of my hall sensor wire didnt do good connection so I was moving the cable to see which one isn't working. Then the bafang stopped working at all ( before it was doing a weird noise when the hall wire didnt do a connection) . I replaced the wire but still the bafang doesnt work at...
  10. M

    bafang swx01

    1) It seems the controller is able to use up to 48V . BUT the low voltage cut is 20.5v. This means you won't have any protection if your 36v battery drops bellow a certain point. I am pretty sure you can modify the LVC but I don't know how. 2) I am pretty sure a hall sensor throttle needs 3...
  11. M

    Help with Bafang Motor Connection

    the thin wires are the for the hall sensors ( black and red are the positive and the negative , the other three for the three hall sensors ) the other 3 are the phase wires. let us know which controller you have ( maybe upload a pic ) and we can help with connecting it :) the bafang is a...
  12. M

    Cheap Full Suspension + Bafang

    thanx for your tips i was thinking about replacing the handlebars with some cruiser ones. do you think these would be ok on this bike ? :) I am also thinking to buy this saddle ... what do you think ?
  13. M

    Cheap Full Suspension + Bafang

    Hi all this is my full suspension e-bike It's a cheap full suspension bike . Motor : Suzhou Bafang 26" 36V 250W ( the all silver one which has engraved 8FUN on it ) Controller : Keywin's 48V 30A Battery : 48V 10AH Lifepo4 Tyres : DMR MotoDigger 26" x 2.35" on the rear , soon to replace the...
  14. M

    50 degrees and sunny in February…in Wisconsin

    nice :) Felt kinda the same today ... It was 17celsius today in Greece and I had to go for a ride , it was beautiful ! I hadn't ridden my ebike for weeks ! Felt awesome , almost forgot how good my 48V bafang full suspension bike feels ! Btw do u limit the amp to 15 amps ? I have no idea how...
  15. M

    What max current controller for 24v/7AH + brushed ?

    Hi all I recently bought an e-bike with a 24V / 7AH NiMH battery and a brushed motor ( rated 24v / 180w ) but it is only PAS ( pedelec ) and I want to replace the controller with one that supports throttle . Now , Keywin ( e-crazyman ) sells two controllers , one with 21A max current and one...
  16. M

    Help finding a solution to Bafang gear stripping

    Just an update ... my Bafang ( which has 8FUN engraved onto it , 250w 36v model ) still works great at 48V with the 30A ecrazyman controller with lifepo4 batteries . I suspest I have done more than 300 kms ( probably more ) and I still accelerate from the steepest hills ( from a dead stop )...
  17. M

    Help finding a solution to Bafang gear stripping

    I don't think so ... cause as I mentioned above I was draggin my friend on his bike ( without him pedalling ) . I am 130lbs + 60lbs full susp bike (guesstimate) + 160lbs + 40-50lbs = 400lbs . This got the motor quite hot then stopped and accelerated from a steep hill , then pushed the brakes and...
  18. M

    Help finding a solution to Bafang gear stripping

    mine is lifepo4 as well , not ni-mh , 48v 10ah with an ecrazyman contoller 30A . it reads 54v off the charger , if I remember correctly. I tried to get the gears into peanut butter state but I can't . Its kinda weird why yours melted with the lifepo4 just like that.... and I can't get mine no...
  19. M

    Help finding a solution to Bafang gear stripping

    hehe nice knuckles , sounds like fun :) you only need some snow tyres now hehehe my 48v bafang still works fine and I can get it super hot , stop and accelerate from the steepest hills , brake and accelerate at the same time but i can't get them into the peanut butter state :D maybe the...
  20. M

    Problem with ecrazy controller + bafang

    it seems that the BMS has a problem cause if I bypass the BMS , everything works like it should ... But I can't understand where is the problem with the BMS ...I already paid 50usd for a bms replacement and I dont want to pay 50usd for a BMS again.... VERY annoying Anywayz... thanx for ur help
  21. M

    Front vs. Rear Hub Motors

    i have both rear and front . The front one is a golden motor , the rear is a bafang . I prefer having my motor on the rear. My front wheel skidded as well , but since I got a fat front tyre with aggressive knobbing and soft compound it is less much pronounced , although it still skidds . Even...
  22. M

    Problem with ecrazy controller + bafang

    Hi While I was ebiking yesterday , the motor stopped working so I checked all the wiring etc ... and everything seems to be ok ... I used my digital voltage meter to measure the voltage on the throttle outputs and when I switch on the controller I get a reading of about 1v and then after 20...
  23. M

    What spokes? Where to buy? 26"+Rear Bafang

    thanx i can still buy both 214mm and 216mm spokes. JohnRobHolmes was kind enough to let me know I need the 214mm for the Sun Rhyno Lite pinned rim so I may go for that rim, what do you think is it a good or what? Thanks for the calculator it is very handy. cheers guys
  24. M

    What spokes? Where to buy? 26"+Rear Bafang

    Hi Tiberius I live in Bournemouth but I am moving back to Greece in a couple of weeks ( can't stand the weather nor food sorry ! hehe ) . I highly doubt I will be able to find a shop in Greece with 214mm or 216mm spokes.. or a Rhyno Lite rim, so I will just order the spokes and rim and take it...
  25. M

    What spokes? Where to buy? 26"+Rear Bafang

    Hi all ! I am ordering a rear bafang but I don't know what spokes I need for a 26" rim and also where to buy them ? I live in England so if you know a place I could order them that would be nice. If not suggest a place in USA and I'll just order 'em. I won't take it to have a bafang + 48v lipo...
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