Recent content by mer

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 :)...

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...

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...

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...

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...

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...

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...

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

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...

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...

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...

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 ?

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...

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...

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...