Search found 2851 matches
- Mar 02 2021 12:47pm
- Forum: EBike Troubleshooting
- Topic: NEED HELP PLEASE HUB MOTOR PROBLEMS
- Replies: 2
- Views: 52
Re: NEED HELP PLEASE HUB MOTOR PROBLEMS
Hummmm. This is a funny one...And I don't mean "funny ha-ha". I don't know what motor your are running because you didn't tell us the make and model. My first guess would be that the gear attached to the motor axle isn't turning because it is striped on the inside of the gear (not the outs...
- Feb 28 2021 10:47am
- Forum: EBike Troubleshooting
- Topic: Kids 500w fun bike keeps cutting out
- Replies: 22
- Views: 423
Re: Kids 500w fun bike keeps cutting out
Seems plausible from where I sit. Make sure your nickle strips and other connecting wires can take the current.



- Feb 27 2021 2:26pm
- Forum: E-Scooter and Motorcycle General Discussion
- Topic: Voltage selection
- Replies: 5
- Views: 194
Re: Voltage selection
Sounds good. Just be sure to set the low voltage cutoff properly so you don't damage your battery by over discharging it.



- Feb 25 2021 3:02pm
- Forum: EBike Build Threads
- Topic: Can I and should I do this
- Replies: 12
- Views: 311
Re: Can I and should I do this
I've re-laced 3 direct drive motors that came with 12 gauge spokes and used 14 gauge spokes. Also one geared hub motor and rim that came with 13 gauge spokes replaced with 14 gauge. The J-bend is of course offset in the larger hole, but wouldn't be able to pull through. I've not noticed any problem...
- Feb 23 2021 11:38pm
- Forum: EBike Build Threads
- Topic: Can I and should I do this
- Replies: 12
- Views: 311
Re: Can I and should I do this
Hey Bikejunkie! Welcome to ES. From one "I'm older" to another, the answer is yes, you can put 20" wheels on a bike made for 26" with some caveats. How did Ross Perot so famously put it......."The devil is in the details." It goes like this. Obviously you will need brak...
- Feb 22 2021 7:44pm
- Forum: EBike Troubleshooting
- Topic: Kids 500w fun bike keeps cutting out
- Replies: 22
- Views: 423
Re: Kids 500w fun bike keeps cutting out
Looks like you might have weak cell groups. Leave on the charger for 24 hours to see of they fully balance. Then check them again and write down the results. Then, as suggested, run it to LVC and measure the cell groups again to compare the voltages of the cell groups when charged and at LVC. You wi...
- Feb 21 2021 10:46pm
- Forum: EBike General Discussion
- Topic: 5 way lights/ indicator/ horn switch help
- Replies: 8
- Views: 225
Re: 5 way lights/ indicator/ horn switch help
First, how can you get the wiring info from the seller? They must have some way for you to access it. Second, get your DMM and start testing. Do this. Assuming that the green wire is a ground wire, and maybe it isn't, but lets assume it is. Set your DMM to continuity and connect the black lead of yo...
- Feb 21 2021 10:20am
- Forum: EBike Troubleshooting
- Topic: Kids 500w fun bike keeps cutting out
- Replies: 22
- Views: 423
Re: Kids 500w fun bike keeps cutting out
Leave the battery to charge over night and then ride the bike again. Meter the battery voltage before you ride. The point of this is to be sure all your cells are balanced and that one or two aren't triggering a low voltage cut off. You can also find the balance leads of the bms and meter those to f...
- Feb 20 2021 10:02am
- Forum: E-Scooter and Motorcycle General Discussion
- Topic: Voltage selection
- Replies: 5
- Views: 194
Re: Voltage selection
Here is the manual. Check it out and let us know what you find.
https://kellycontroller.com/wp-content/ ... alV2.5.pdf

https://kellycontroller.com/wp-content/ ... alV2.5.pdf


- Feb 19 2021 7:03pm
- Forum: EBike Technical
- Topic: How to dissasemble a Mxus rear hub?
- Replies: 6
- Views: 183
Re: How to dissasemble a Mxus rear hub?
When you resemble it, mount the gear sided cover to the wheel first then use two hands on the axle when reinserting the stater and axle. If you catch your finger in between the stater and magnets you will be very sorry. 

- Feb 16 2021 11:12am
- Forum: EBike General Discussion
- Topic: Battery continuous discharge amp and controller amp need to match?
- Replies: 31
- Views: 1166
Re: BMS and motor match up
It's not that simple. Is your battery rated for 100A continuous discharge? Is your controller rated for 100A continuous discharge?



- Feb 15 2021 12:58pm
- Forum: Health and Food
- Topic: Cured my wife's anxiety and my depression with nutritional supplements.
- Replies: 65
- Views: 3857
- Feb 11 2021 3:01pm
- Forum: EBike General Discussion
- Topic: ideal front fork for street: Speedway style leading axle?
- Replies: 18
- Views: 358
Re: ideal front fork for street: Speedway style leading axle?
Just so long as it doesn't constantly bounce your front wheel off the ground, hopping and skipping all the way. Some traction is needed.
Unless you plan to pitch your bike sideways and go left, if you know what I mean.

Unless you plan to pitch your bike sideways and go left, if you know what I mean.



- Feb 10 2021 10:53am
- Forum: EBike Technical
- Topic: mtx 48v controller can it handle 52 volts
- Replies: 2
- Views: 113
Re: mtx 48v controller can it handle 52 volts
The answer is probably, but with no guarantees. The only way to know for sure it to know what voltages your controller capacitors and mosfets are valued for. To check that out, you need to open your controller and look at the components and figure out the values. The capacitors have the value printe...
- Feb 09 2021 3:01pm
- Forum: Battery Technology
- Topic: 12S Bluetooth Smart BMS from LithiumBatteryPcb has probably drained my Battery
- Replies: 9
- Views: 264
Re: 12S Bluetooth Smart BMS from LithiumBatteryPcb has probably drained my Battery
Well, I am not familier with your BMS, but sorry to say your story is an old one around here. BMS's being connected to a battery for a long time and draining the battery has happened many-many times. As you surmise, disconnecting the BMS for battery storage is the way to go. Either by switch (make s...
- Feb 08 2021 9:10pm
- Forum: E-Vehicles General Discussion
- Topic: Hub motor suddenly feels like a rubbing tyre..
- Replies: 10
- Views: 353
Re: Hub motor suddenly feels like a rubbing tyre..
Have you checked the mosfets in your controller?



- Feb 08 2021 4:03pm
- Forum: General Discussion
- Topic: There was a fire at my house today while I was not home.
- Replies: 1281
- Views: 250576
Re: There was a fire at my house today while I was not home.
The two of you need to make sure you have fully forgiven yourselves. It is the only way out of the bad feelings.



- Feb 07 2021 10:58am
- Forum: E-Vehicles General Discussion
- Topic: Hub motor suddenly feels like a rubbing tyre..
- Replies: 10
- Views: 353
Re: Hub motor suddenly feels like a rubbing tyre..
When you said it was fine, what did you check?
It could be a bad baring, a loose magnet, a loose axle, a misaligned brake rotor, it could be a lot of things.
Can you give us more detail of what you checked?

It could be a bad baring, a loose magnet, a loose axle, a misaligned brake rotor, it could be a lot of things.
Can you give us more detail of what you checked?


- Feb 04 2021 10:40pm
- Forum: EBike Troubleshooting
- Topic: Are generic Chinese controllers and throttles non-adjustable?
- Replies: 26
- Views: 751
- Feb 04 2021 11:29am
- Forum: EBike Troubleshooting
- Topic: I gutted a E+'s "in hub" controller - strange results
- Replies: 22
- Views: 769
Re: I gutted a E+'s "in hub" controller - strange results
Why not just replace the blue Hall sensor and see if solves your problem?



- Feb 01 2021 10:41pm
- Forum: EBike Troubleshooting
- Topic: I gutted a E+'s "in hub" controller - strange results
- Replies: 22
- Views: 769
Re: I gutted a E+'s "in hub" controller - strange results
3 wires and 24 poles, I am calling it 3 phase. If I am wrong, feel free to let me know. :oops: :lol: However, it sounds like one of those "could be" situations. Could be that your controller learning didn't learn exactly and your phase / hall timing is still out. Could be a bad hall sensor...
- Feb 01 2021 6:09pm
- Forum: EBike Troubleshooting
- Topic: I gutted a E+'s "in hub" controller - strange results
- Replies: 22
- Views: 769
Re: I gutted a E+'s "in hub" controller - strange results
When you say limited performance, can you give us more detail. Did it run smoothly without power, did it jutter around, what do you mean limited power?
Also, how do you know your phase wire / hall sensors were in sync?

Also, how do you know your phase wire / hall sensors were in sync?


- Jan 31 2021 11:28am
- Forum: EBike Troubleshooting
- Topic: Are generic Chinese controllers and throttles non-adjustable?
- Replies: 26
- Views: 751
Re: Are generic Chinese controllers and throttles non-adjustable?
Inexpensive generic controllers are usually modified sine wave (trapazoid wave) and are generally not serviceable much. If you want smooth starting a sine wave will give you more of that depending on your motor / controller setup. Bluetooth controllers are more programmable, and yes, more expensive....
- Jan 27 2021 9:05pm
- Forum: Battery Technology
- Topic: Charging silverfish type batteries ?
- Replies: 3
- Views: 120
Re: Charging silverfish type batteries ?
48v at what amps?
If they can not take 5A, then at best you overheat them and degrade them. At worst you set them on fire. Any way to figure out the types of cells they are? Manufacture and type of cells?

If they can not take 5A, then at best you overheat them and degrade them. At worst you set them on fire. Any way to figure out the types of cells they are? Manufacture and type of cells?


- Jan 26 2021 11:21pm
- Forum: Health and Food
- Topic: Cured my wife's anxiety and my depression with nutritional supplements.
- Replies: 65
- Views: 3857