Search found 31880 matches

by amberwolf
May 17 2022 9:52pm
Forum: EBike General Discussion
Topic: Gadgets on your eBike that you couldn't live without
Replies: 89
Views: 6052

Re: Gadgets on your eBike that you couldn't live without

In my general experience, except for *real* high-performance LED units, it could take up to a few hundred watts to generate 9000 lumens with an LED array, and it will be on the larger side, and get pretty friggin' hot. :/ There *are* HP LEDs that can do 200+ lumens per watt, taking less than 50w to ...
by amberwolf
May 17 2022 9:32pm
Forum: EScooter/EMotorcycle Build Threads
Topic: Schwinn Stingray Scooter Build E-Brakes Issue
Replies: 2
Views: 63

Re: Schwinn Stingray Scooter Build E-Brakes Issue

Without knowing what controller you have, and what ebrakes you have, and exactly how they are wired up, I can't say which problem is the cause. There are two basic ways that two-wire ebrake switches can work. THey can work by shorting together two wires when pulling hte lever, or by disconnecting th...
by amberwolf
May 17 2022 9:20pm
Forum: Motor Technology
Topic: Votol EM150/2 "communication abnormal" issue w/ CAN Bus
Replies: 2
Views: 44

Re: Votol EM150/2 "communication abnormal" issue w/ CAN Bus

If it makes any difference, there are some USB to serial drivers (which are probably used as the front end of the USB-CANBUS adapters) that Windows10/etc will not "allow" to be installed. (or if installed, will be blocked from use). There is at least one webpage out there about this, but g...
by amberwolf
May 17 2022 8:46pm
Forum: EBike Troubleshooting
Topic: Crystalyte UFO acting up at end of long rides
Replies: 7
Views: 111

Re: Crystalyte UFO acting up at end of long rides

Given the specific conditions wherein the quack takes place, I'm putting my money on Amberwolf's hint about the loose magnet. If this were the case, I suppose this would be repairable by applying epoxy while keeping the magnet pressed tightly in place? The magnet should hold itself in place against...
by amberwolf
May 17 2022 8:30pm
Forum: Battery Technology
Topic: Issues with balancing on new battery pack
Replies: 8
Views: 125

Re: Issues with balancing on new battery pack

How are the cells being measured, under what conditions? Which groups are high? I took the pack put and measured group by group, I'm not sure if it was 13 and 11 or 1 and 3 that was "high" That probably eliminates the power drain of operating the BMS as an imbalance cause. It is interesti...
by amberwolf
May 17 2022 8:06pm
Forum: Battery Technology
Topic: Paralleling batteries, separate charging ports & BMS
Replies: 7
Views: 108

Re: Paralleling batteries, separate charging ports & BMS

Thinking that paralleling the discharge ports, and paralleling the charge ports (discarding one of course), and putting a 5 amp diode on each positive charge wire may be a good solution. That of course will lower the charge level to the cells by the diode voltage drop, which will help the cells las...
by amberwolf
May 16 2022 10:13pm
Forum: Motor Technology
Topic: Looking for suitable controller, help wanted
Replies: 6
Views: 87

Re: Looking for suitable controller, help wanted

Note that it's specs say rated current is only 15A, max is 30, so as long as you aren't needing to use it at 30 all that much and mostly at the 15A range that would be ok. If you really need higher continous usage power, you might need a slightly better controller. (this one might get hotter than it...
by amberwolf
May 16 2022 10:05pm
Forum: EBike Non-hub Motor Drives
Topic: State of the hackable motor
Replies: 3
Views: 119

Re: State of the hackable motor

The amateur machinist in me wonders what the breakage mode is - whether it's shearing, cracking at a stress riser, etc. Most likely primarily stress riser cracks propagating thru; the ones I have seen pics of here on ES look lke spirals or diagonal fractures along the length; it's because it has ho...
by amberwolf
May 16 2022 9:56pm
Forum: Motor Technology
Topic: Large diameter direct drive hub motors
Replies: 13
Views: 2047

Re: Large diameter direct drive hub motors

For a hubmotor in a wheel, suspension or not, heavier generally means a harsher ride. Heavier doesn't mean better (either better suited or better quality), either, or even more powerful. It might be either of those, but no certainty just because it's heavier. Because of quality / manufacturing issue...
by amberwolf
May 16 2022 9:34pm
Forum: EBike General Discussion
Topic: 52V battery now 20V - dead?
Replies: 8
Views: 146

Re: 52V battery now 20V - dead?

The BMS has a row of wires out to the cells, and testing those I get a sequence from the 0 to ca. 48V, incrementing by ca 3V each connecting point. Starting from the pin that's towards the bottom here. 20220516_165307.jpg So if there's a problem with any of the cells, it isn't obvious. I count 16 p...
by amberwolf
May 16 2022 8:56pm
Forum: Motor Technology
Topic: Looking for suitable controller, help wanted
Replies: 6
Views: 87

Re: Looking for suitable controller, help wanted

I assumed lights would be common since every e-bike is already using a large battery. I don't need anything fancy, I would simply rather run a headlight and tail light off my battery instead of having to charge them separately. It would be nice if they were common, but they're not nearly as much as...
by amberwolf
May 16 2022 8:15pm
Forum: Motor Technology
Topic: Looking for suitable controller, help wanted
Replies: 6
Views: 87

Re: Looking for suitable controller, help wanted

Kelly does have software for thier controllers; I think Fany there is the most common technical contact for questions about that. The software does have quirks and may take some work to learn and get setup for your system. It's likely you'll end up using hte software to get the motor to run correctl...
by amberwolf
May 16 2022 7:58pm
Forum: EScooters/EMotorcycles
Topic: Kuberg Cross Controller Help
Replies: 2
Views: 49

Re: Kuberg Cross Controller Help

What was the original controller current limit? Using one with the same should give you about the same performance. Some controllers have a soft throttle response, isntead of instant start; even with the same current/power it has a slower reaction; less "oomph". Most ads don't specify whic...
by amberwolf
May 16 2022 7:44pm
Forum: EBike Non-hub Motor Drives
Topic: BBSHD voltage?
Replies: 1
Views: 60

Re: BBSHD voltage?

Typically with any controller / display set that come in different voltage sets (rather than autoadapting, or having a menu or switch to select this), the battery meter and the LVC are set for one or the other; there's about a 4v difference between the two types (one cell's worth). Some also have an...
by amberwolf
May 16 2022 7:33pm
Forum: Motor Technology
Topic: How critical is magnet gap ?
Replies: 1
Views: 52

Re: How critical is magnet gap ?

I'm not sure how much of an effect it would have for the magnets to be slightly asymmetrical around the rotor; it should still run ok; might be noisier than normal, or it might use a little more power than usual. Just be sure to install them like the originals were, regarding polarity: If they were ...
by amberwolf
May 16 2022 7:22pm
Forum: EBike General Discussion
Topic: E-Bike Throttle, any suggestions for a good, cheap one?
Replies: 1
Views: 66

Re: E-Bike Throttle, any suggestions for a good, cheap one?

COT, cable-operated throttle, less than $8 on aliexpress for one; use whatever kind of cable-pulling mechanism you want on the handlebars to operate it with. I used to break the plastic crap all the time because I would hit a bump as I was holding it near or at the full throttle while accelerating f...
by amberwolf
May 16 2022 5:37pm
Forum: EScooters/EMotorcycles
Topic: help with diy electric moped
Replies: 7
Views: 148

Re: help with diy electric moped

And is there maybe a way to fool or disable the lvc, since the battery got its own management system? I'll also ask that the seller manufacturer, otherwise crack it open and take a look lol. There often is, but depending on the BMS's safety shutoff for your everyday LVC is pretty hard on the batter...
by amberwolf
May 16 2022 3:14pm
Forum: EBike Technical
Topic: Bafang torque sensing bottom bracket
Replies: 11
Views: 141

Re: Bafang torque sensing bottom bracket

It's possible that it is position/angle agnostic; depends on how it's sensor is designed to work, and that I haven't found any references for. Some use sensors embedded in the actual crankshaft (TSDZ2; weakens the shaft though); some use them in a "ring" on the crankshaft by the bearing, s...
by amberwolf
May 16 2022 3:03pm
Forum: EBike Troubleshooting
Topic: Pedal assist won't re-engage
Replies: 4
Views: 70

Re: Pedal assist won't re-engage

No problem; you do much better in English than many native speakers I know, and better than I can do in any other language than English. ;) Has this problem always existed, or did it suddenly start; if the latter, what specifically happened between the time it worked and the time it didn't? Sometime...
by amberwolf
May 16 2022 2:55pm
Forum: EBike Technical
Topic: Bafang torque sensing bottom bracket
Replies: 11
Views: 141

Re: Bafang torque sensing bottom bracket

One thing I need to know is if it is indexed on instillation is there a up and down? Do you mean for the connector, or for the entire BB unit? If the connector, the pinout appears to show an indexing mark. If the BB unit, the two I have experience with (THUN and TDCM) both have specific installatio...
by amberwolf
May 16 2022 2:51pm
Forum: EBike Technical
Topic: Bafang torque sensing bottom bracket
Replies: 11
Views: 141

Re: Bafang torque sensing bottom bracket

Thanks. What is conflicting about it? I only see one information set, the pinout, that appears to be self-consistent. :?
machanic wrote:
May 16 2022 2:08pm
The pinout link I hope. Great that worked.
by amberwolf
May 16 2022 2:49pm
Forum: Forum Rules and Features
Topic: Move to XenForo software
Replies: 217
Views: 15340

Re: Move to XenForo software

I thought I'd asked this already, but cant find my post (or any answer): Does middle-clicking (or ctrl-left-clicking) on a link, picture, thread, etc. still open that in a new tab (for browsers that already normally do this for the existing PHPBB ES)? I ask because it's the only useful way I've foun...
by amberwolf
May 16 2022 1:06pm
Forum: EBike Technical
Topic: Vent Hole to let Moisture escape
Replies: 17
Views: 377

Re: Vent Hole to let Moisture escape

(It's my understanding that over 100F, any moisture evaporates easily...) Over 100 C maybe, which should evaporate all water. :lol: About 80F (not C) water begins rapidly evaporating as it is a "chainlink" molecule. So at 100F it will rapidly evaporate, given a less-than-100% humidity lev...
by amberwolf
May 16 2022 1:03pm
Forum: Motor Technology
Topic: Battery voltage vs controller power
Replies: 4
Views: 142

Re: Battery voltage vs controller power

You could try doing the same but uphill (and if that isn't enough, carry extra weight with you).