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by amberwolf
Dec 16 2019 12:08am
Forum: E-Bike Technical
Topic: Wiring a Sican Controller
Replies: 3
Views: 40

Re: Wiring a Sican Controller

Not just the Chinese, not just ebike components; that's a problem around the world with all sorts of devices and stuff.
by amberwolf
Dec 16 2019 12:04am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Noisy Electric Motion 5.7
Replies: 1
Views: 23

Re: Noisy Electric Motion 5.7

How long does he say it's been making this noise? Just started before loaning it to you, going on for years, or he's never heard it before?

Difference in the time might indicate different problems, especially if the noise has changed over time.
by amberwolf
Dec 15 2019 11:54pm
Forum: E-Bike General Discussion
Topic: Recommend a bike computer for the ebike
Replies: 2
Views: 39

Re: Recommend a bike computer for the ebike

Some of the threads in these lists are relevant; should be easy to tell by title. Hopefully they help. https://endless-sphere.com/forums/search.php?keywords=bike+computer&terms=all&author=&sc=1&sf=titleonly&sr=topics&sk=t&sd=d&st=0&ch=300&t=0&submit=Search https://endless-sphere.com/forums/search.ph...
by amberwolf
Dec 15 2019 11:51pm
Forum: E-Bike Technical
Topic: Wiring a Sican Controller
Replies: 3
Views: 40

Re: Wiring a Sican Controller

I connected it to a battery but it was a 36 volt nominal battery and the controller minimum voltage on the label is 48 volts. A very full 36v battery is around the same voltage as a very empty 48v battery, so it *might* let the controller turn on if it's fully charged. But if the controller LVC is ...
by amberwolf
Dec 15 2019 10:43pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Hacking a Couple Stromers
Replies: 111
Views: 32601

Re: Hacking a Couple Stromers

HK12K wrote:
Dec 15 2019 7:05pm
If anyone needs parts there is a used ST2 on my local Craigslist.
Too bad we have no idea where that is. :/
by amberwolf
Dec 15 2019 10:29pm
Forum: General Discussion
Topic: Magic Pie 5 front mount sits between forks uneven ..not centered ..??
Replies: 4
Views: 65

Re: Magic Pie 5 front mount sits between forks uneven ..not centered ..??

A one inch difference from one side to the other is very severe. 1+3/4 from fork to motor on one side and 3/4 on the other side I haven't seen a front hubmotor with that much difference. Rear motors, yes, because of the freewheel allowance on the drive side. If the spokes are at the same angle on bo...
by amberwolf
Dec 15 2019 10:18pm
Forum: Items for Sale - New
Topic: 20Ah li-on NMC cells UK London new boxed £10 each on 50
Replies: 54
Views: 2598

Re: 20Ah li-on NMC cells UK London new boxed £10 each on 50

Those cases are the best way to keep them housed; they make packaging and connection VERY easy and reliable. Though they do add bulk to the resulting pack, they also protect the cells. These are a good reliable brand and model cell. If I had any money to spare for it, I'd buy as many as I could affo...
by amberwolf
Dec 15 2019 10:11pm
Forum: General Discussion
Topic: Please recommend best battery pack builders in UK / Europe"
Replies: 18
Views: 355

Re: Please recommend best battery pack builders in UK / Europe"

There is also a setting for phase current limit! This also is between 50-100% what should I set that at? That depends on your motor. The lower the phase current, the lower the torque. If it has a default setting for the motor it comes with, that should be safe. Otherwise, you should probably ask th...
by amberwolf
Dec 15 2019 12:52am
Forum: E-Bike Technical
Topic: Faraday Auxiliary Battery Pack do it yourself
Replies: 5
Views: 207

Re: Faraday Auxiliary Battery Pack do it yourself

Basically in order for this to work safely under "any" conditions, the "Auxiliary battery pack" (ABP) would have to be a portable battery-powered battery charger, not just a simple battery. So the actual battery inside the ABP could be any voltage or capacity that gives you the extra total capacity ...
by amberwolf
Dec 15 2019 12:01am
Forum: General Discussion
Topic: Magic Pie 5 front mount sits between forks uneven ..not centered ..??
Replies: 4
Views: 65

Re: Magic Pie 5 front mount sits between forks uneven ..not centered ..??

Is the motor itself not centered? Or is it just the rim/tire that is not centered? If the motor itself is not centered, then it sounds like a rear motor being used in front. Maybe somehow it's a rear stator inside the covers for a front wheel? If it's just the rim/tire not centered, then maybe someo...
by amberwolf
Dec 14 2019 11:46pm
Forum: E-Bike General Discussion
Topic: ebike tired battery goes NEW - NOT clickbait - real
Replies: 5
Views: 203

Re: ebike tired battery goes NEW - NOT clickbait - real

Sorry to tell you this, but none of this is news on this site. I think you might want to read around here a bit. One disadvantage to this system is that the old battery, that has much less capacity and capability now than it used to, is now extra weight and volume on the bike, which you may not be a...
by amberwolf
Dec 14 2019 11:41pm
Forum: Motor Technology
Topic: Can you add regenerative power to any EV ? YES u can
Replies: 6
Views: 166

Re: Can you add regenerative power to any EV ? YES u can

Assuming you have a DD hubmotor (or non-freewheeling middrive), you could just change out your non-regen controller for a simple cheap regen-capable controller. Cheaper, simpler, and potentially more reliable. Not that I'm against DIY :lol: , just that most DD hubmotor bikes *DO* already have regen ...
by amberwolf
Dec 14 2019 11:31pm
Forum: E-Bike Non-hub Motor Drives
Topic: Friction Drive Mountain Bike
Replies: 28
Views: 474

Re: Friction Drive Mountain Bike

You wouldn't happen to have any pictures of a skirt bearing would you? Would be interested to see how that works inside the motor. Some of these posts have some pics of skirt bearings in various motors, if it helps: https://endless-sphere.com/forums/search.php?keywords=%22skirt+bearing%22&terms=all...
by amberwolf
Dec 14 2019 11:19pm
Forum: Items Wanted
Topic: BMS/PCB designer
Replies: 5
Views: 485

Re: BMS/PCB designer

If you can give details, people might be able to help you find one that already exists that does what you're after. Or, if there isn't one, to help you design one. (or see if they are able to design one for you). Without knowing what exactly it is that you need, it's difficult to do that. So, if you...
by amberwolf
Dec 14 2019 11:06pm
Forum: E-Bike Technical
Topic: 20 li-ion battery doesn't reach full charge.
Replies: 12
Views: 219

Re: 20 li-ion battery doesn't reach full charge.

The charger shows 84.0v on my DMM and the voltmeter on my throttle input. When I disconnect the charger the voltmeter my battery read 78.0v on my DMM from it’s posts and on the voltmeter on my throttle. Ok, then the BMS in the battery is shutting off it's charge input when it reaches 78v. The charg...
by amberwolf
Dec 14 2019 10:57pm
Forum: Items for Sale - New
Topic: 20Ah li-on NMC cells UK London new boxed £10 each on 50
Replies: 54
Views: 2598

Re: 20Ah li-on NMC cells UK London new boxed £10 each on 50

jimbob01 wrote:
Dec 14 2019 10:05am
Depends how big your bike is... people are running them..and at 10c they are nice for high power applications. :D
That's 10C burst for a few seconds, only 5C continuous. ;)

(I use this model of EIG cells on my SB Cruiser trike, used, from a different source).
by amberwolf
Dec 14 2019 10:39pm
Forum: General Discussion
Topic: Please recommend best battery pack builders in UK / Europe"
Replies: 18
Views: 355

Re: Please recommend best battery pack builders in UK / Europe"

Ok I'm currently riding 11miles each day. <snip> I didn't want to limit myself to such a short range. I would like to be able to get 22 miles + so I don't have to charge battery every evening. <snip> I was wanting to reach up to 30mph + Keep in mind you'll likely need better tires, wheels and brake...
by amberwolf
Dec 14 2019 1:31am
Forum: E-Bike Technical
Topic: 20 li-ion battery doesn't reach full charge.
Replies: 12
Views: 219

Re: 20 li-ion battery doesn't reach full charge.

Anyways, since I just got it together in the last week, when I charge the battery the charger shows 84v on the lines but the battery has never reached over 78v at startup. What exactly does "at startup" mean? I would assume that the 84v means that at the end of charging, it is resting at 84v before...
by amberwolf
Dec 14 2019 1:28am
Forum: E-Bike Technical
Topic: 20 li-ion battery doesn't reach full charge.
Replies: 12
Views: 219

Re: 20 li-ion battery doesn't reach full charge.

I tried this, thinking there was a voltage drop somewhere, but my potentiometer on my throttle is surprisingly accurate. Only off by 0.1v. I don't understand what your throttle has to do with the battery voltage or the multimeter being used to measure the battery? You should make sure first that th...
by amberwolf
Dec 14 2019 1:02am
Forum: E-Bike Non-hub Motor Drives
Topic: Friction Drive Mountain Bike
Replies: 28
Views: 474

Re: Friction Drive Mountain Bike

Dual-ended support of the bell has been done on some of the friction drive motors, and some of the other RC-motor-driven middrives. I don't recall a hollow axle, but there have been several that use a large ID bearing on one end of the shaft, with a spacer between it's ID and the shaft, and then hol...
by amberwolf
Dec 13 2019 10:59pm
Forum: E-Bike Non-hub Motor Drives
Topic: Friction Drive Mountain Bike
Replies: 28
Views: 474

Re: Friction Drive Mountain Bike

Most of the RC motors I've seen disassembled here on ES have bells that you could replace with a kurled roller.
by amberwolf
Dec 13 2019 10:41pm
Forum: General Discussion
Topic: Please recommend best battery pack builders in UK / Europe"
Replies: 18
Views: 355

Re: Recommended battery for 3000w cyclone and 60a programmable controller

I didn't think running the motor at a lower wattage it's rated for would be a good idea. I think you have at least one misunderstanding on how systems work. Almost always the motor will be running at much lower wattage than it's rating. Only at peak demands (startup from a stop, hill climbing, etc)...
by amberwolf
Dec 13 2019 3:43am
Forum: General Discussion
Topic: Please recommend best battery pack builders in UK / Europe"
Replies: 18
Views: 355

Re: Please recommend best battery pack builders in UK / Europe"

Might seem like it, but if it's still the same battery pack for the same project being decided upon, it's better to have one thread to figure out exactly what needs to be built. ;) Otherwise the OP has to keep several separate threads updated with all the information all the time, and answer questio...
by amberwolf
Dec 13 2019 3:40am
Forum: E-Vehicles General Discussion
Topic: Cycle Analyst 3.1 speed sensor (spoke magnet)
Replies: 6
Views: 110

Re: Cycle Analyst 3.1 speed sensor (spoke magnet)

Yep, that's the wiring, as described in the CA info pages. :)

If you're using a hall sensor, you do use the 5v to power the sensor, though.
by amberwolf
Dec 13 2019 3:33am
Forum: E-Bike General Discussion
Topic: Is a leisurely pedal cadence possible going 25 mph on an ebike?
Replies: 19
Views: 585

Re: Is a leisurely pedal cadence possible going 25 mph on an ebike?

So is there a difference between what you're saying with the IGH in the front and an Internally Geared Crankshaft like the Patterson, Efneo or Schlumpf? Yes. look at my SB Cruiser thread for the IGH in frame pics. I think this is the original post where I first installed it http://www.endless-spher...