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by amberwolf
Dec 13 2018 10:59pm
Forum: E-Bike General Discussion
Topic: A little help please - Cargo Hub Motor
Replies: 37
Views: 364

Re: A little help please - Cargo Hub Motor

E-HP wrote:
Dec 13 2018 10:36pm
Motorcycles don't have motors, they're powered by engines.
But quite a few do have motors. There are a number of electric motorcycle manufacturers, and plenty of DIY EV conversions and scratchbuilts.
by amberwolf
Dec 13 2018 10:58pm
Forum: E-Bike General Discussion
Topic: A little help please - Cargo Hub Motor
Replies: 37
Views: 364

Re: A little help please - Cargo Hub Motor

And don't have to go thru the bicycle drivetrain to use a middrive, and still have shiftable gears. More complicated, but certainly possible. Well yeah, if you had a rare nuvinci or a CNC machine to make your own transmission with, ha. No need for a CNC, or a nuvinci. See my other post with a list ...
by amberwolf
Dec 13 2018 10:55pm
Forum: E-Bike General Discussion
Topic: A little help please - Cargo Hub Motor
Replies: 37
Views: 364

Re: A little help please - Cargo Hub Motor

PHoenix has a law on the books requiring a one-time 50-cent registration of every bicycle with a specific department, and put the license plate on the bike, etc, but that doesn't exist anymore, so it's impossible to do it. It doesn't make bicycles illegal, though--when asked, the city simply says to...
by amberwolf
Dec 13 2018 10:46pm
Forum: E-Bike General Discussion
Topic: Tiny hub motor sucking the life out of my batteries.
Replies: 16
Views: 646

Re: Tiny hub motor sucking the life out of my batteries.

What do people do with "zombie-batteries" that are not strong enough anymore, is there a marked for them? There's a market for anything someone will pay you for. ;) But realistically, used batteries (especially with problems) won't get you much, if anything, from most people. However, you can alway...
by amberwolf
Dec 13 2018 10:02pm
Forum: E-Bike Technical
Topic: Motor growl problem
Replies: 4
Views: 77

Re: Motor growl problem

The most likely problem is a connection or wire failure in phase or halls, especially since the wires and connectors were handled and moved and modified. It's unlikley to be actual sensors, because it's intermittent. The first most likely connection would be halls, but if you have already verified t...
by amberwolf
Dec 13 2018 9:20pm
Forum: E-Bike General Discussion
Topic: A little help please - Cargo Hub Motor
Replies: 37
Views: 364

Re: A little help please - Cargo Hub Motor

NPC Brown Cow wrote:
Dec 13 2018 7:49pm


The definition is on the books, but there is no process in the DMV system to title or register it.
Does the law require that it be titled or registered?

Or does it simply require that you have an M-class license to ride it?
by amberwolf
Dec 13 2018 9:18pm
Forum: E-Bike General Discussion
Topic: A little help please - Cargo Hub Motor
Replies: 37
Views: 364

Re: A little help please - Cargo Hub Motor

neptronix wrote:
Dec 13 2018 8:06pm
A mid drive would normally be perfect, but you would eat bike chains left and right..
Don't *have* to use bicycle chains. ;)

And don't have to go thru the bicycle drivetrain to use a middrive, and still have shiftable gears. More complicated, but certainly possible.
by amberwolf
Dec 13 2018 9:16pm
Forum: E-Bike General Discussion
Topic: A little help please - Cargo Hub Motor
Replies: 37
Views: 364

Re: A little help please - Cargo Hub Motor

If I could afford the legal battle I would just build it and claim it's legally a "unclassified" vehicle. Meaning that it sits outside *any* of the vehicle definitions on the books and for them to do anything about it legally the state senate would have to add a definition. Not exactly--what they c...
by amberwolf
Dec 13 2018 9:00pm
Forum: E-Bike General Discussion
Topic: A little help please - Cargo Hub Motor
Replies: 37
Views: 364

Re: A little help please - Cargo Hub Motor

power drive system that functions directly or automatically only, not requiring clutching or shifting by the operator after the drive system is engaged. Thankfully, that's very different from not allowing shifting of gears at all, so you have some workarounds available to still have variable gearin...
by amberwolf
Dec 13 2018 7:35pm
Forum: E-Bike General Discussion
Topic: A little help please - Cargo Hub Motor
Replies: 37
Views: 364

Re: A little help please - Cargo Hub Motor

I don't expect to be climbing the big hills (20%) at speed, there aren't that many in the area and they can be detoured around. Even if you aren't, there is going to be some minimum speed you must maintain to keep the motor in an efficient enough zone to not meltdown before you reach the top. As fo...
by amberwolf
Dec 13 2018 6:50pm
Forum: General Discussion
Topic: TEST 850w table heater and 685w desk heater ( 1st bill in, page 6)
Replies: 135
Views: 8776

Re: TEST 850w table heater and 685w desk heater ( 1st bill in, page 6)

Do I count the cost of dog food for my four portable heaters? :P (when they're all in the bedroom, it stays pretty warm, with the curtain/blanket across the doorway. frequently don't even need a blanket, with 40-45F lows outside). FWIW, a common fireplace sucks already warmed air out of your house i...
by amberwolf
Dec 13 2018 5:32pm
Forum: E-Bike General Discussion
Topic: TROUBLESHOOT BAD BATTERY PACK
Replies: 6
Views: 139

Re: TROUBLESHOOT BAD BATTERY PACK

However, you may not want to charge the strings together anymore, because if you connect the balance leads and cells in one string are very different from those in another, it may cuase high current thru the leads trying to suddenly equalize that. Another problem, if you *don't* parallel the balance...
by amberwolf
Dec 13 2018 5:05pm
Forum: E-Bike General Discussion
Topic: A little help please - Cargo Hub Motor
Replies: 37
Views: 364

Re: A little help please - Cargo Hub Motor

I need a hub motor to assist a Rotovelo velomobile (73lbs), my self (~260lbs) and cargo (~60lbs) up 20% grades. http://www.1728.org/gradient4.gif How long do you have to sustain going up that slope, and how fast are you allowed to go up it? (or rather, how fast do you want to?) Presumably the same ...
by amberwolf
Dec 13 2018 3:45pm
Forum: E-Bike Build Threads / Photos & Video
Topic: eTrike Build Log - Custom Frame / 78v Lipo / MXUS 3000w
Replies: 13
Views: 1031

Re: eTrike Build Log - Custom Frame / 78v Lipo / MXUS 3000w

I like the idea of the unified strip to do everything; seems cheap enough. Because of the lights I have like yours, at night, a fair few cars actually slow down as they pass me to get a better look (or take pics/vids). :) Most of them also give me the whole lane, too, though there's always a few tha...
by amberwolf
Dec 13 2018 3:23pm
Forum: E-Bike Technical
Topic: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier
Replies: 804
Views: 87992

Re: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier

Forgot to add the pics of the AC plug; this is with a regular extension cord plugged into it.
by amberwolf
Dec 13 2018 3:20pm
Forum: Battery Technology
Topic: 48V Li-Ion shuts itself down at ~45V
Replies: 7
Views: 121

Re: 48V Li-Ion shuts itself down at ~45V

Then to find out what's actually happening in the pack, you'd probably have to open it up and check the actual cell voltages at the cell groups' balance wires. I recommend checking both at the cell end and the BMS end, so that if there is a difference you'll know there is something wrong with the ba...
by amberwolf
Dec 12 2018 11:36pm
Forum: E-Bike Technical
Topic: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier
Replies: 804
Views: 87992

Re: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier

Today all I got done on the trike besides the above troubleshooting was to finally install the AC-input jack for the charger, replacing the simple regular power cord with it's end ziptied to the frame. The previous cord required two hands and getting down on the ground to plug in. The jack just requ...
by amberwolf
Dec 12 2018 11:15pm
Forum: E-Bike Technical
Topic: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier
Replies: 804
Views: 87992

Re: The SB Cruiser: Amberwolf&Dogman's 2WD CargoTrike&DogCarrier

For now I've basically created three presets identical except for the speed limit. 1 = 20MPH, 2 = 10MPH, and 3 = 5MPH. If I need a speed other than one of those but still want to pedal, I can switch to one that's lower than what I need, and just use the lefthand motor's throttle (not routed thru the...
by amberwolf
Dec 12 2018 10:21pm
Forum: Battery Technology
Topic: Help with BMS
Replies: 6
Views: 109

Re: Help with BMS

As long as the charger has an internal relay/etc that disconnects it when it is not powered by AC input, then it cannot drain the battery. Similarly, if it has an output diode (sometimes used for polarity protection), no battery drain. Many chargers have neither of those, and so they can drain the b...
by amberwolf
Dec 12 2018 9:08pm
Forum: E-Bike Technical
Topic: Do I have this right regarding fusing?
Replies: 2
Views: 72

Re: Do I have this right regarding fusing?

Sounds right, but the converter is not 100% efficient, so the current will be higher by the actual efficiency (could be anything from as low as 50% to as high as something in the 80s, maybe more). If there's no specs on any of that you might want to assume the worst case. Breakers usually have vario...
by amberwolf
Dec 12 2018 1:21am
Forum: Battery Technology
Topic: NiCd for 36v1000w motor
Replies: 4
Views: 84

Re: NiCd for 36v1000w motor

Yeah, it's something I discovered the same way Fechter did (in the link above), sometime in the 90s when I used to build scifi props for conventions and such...NiCd was the only rechargeable stuff I could find then, and it was way easier to seal them up in the props than make battery compartments a ...
by amberwolf
Dec 11 2018 11:53pm
Forum: E-Bike General Discussion
Topic: Compound Gearing with two IGH
Replies: 8
Views: 168

Re: Compound Gearing with two IGH

What I do not understand is the crank gear of 10T is going to 1st IGH, with its "normal" operating gear of 20T and the IGH set to 75%, but then there is an added gear mounted on the flange. Different then the common Compound Gearing thats easily solvable. How does one finish the calculation? Not su...
by amberwolf
Dec 11 2018 11:40pm
Forum: Battery Technology
Topic: NiCd for 36v1000w motor
Replies: 4
Views: 84

Re: NiCd for 36v1000w motor

36v 1000w brush-less motor (but it only has 2 wires?) That would probably be a brushed motor. If you apply power to the wires (like from a car battery) then the motor will spin at about 1/3 of the speed it would have with the original, if it is a brushed. Reversing the wires will reverse the direct...
by amberwolf
Dec 11 2018 10:39pm
Forum: Battery Technology
Topic: How does a BMS balance cells ?
Replies: 7
Views: 163

Re: How does a BMS balance cells ?

There are a number of threads on how BMSs work, if you look thru this list: https://endless-sphere.com/forums/search.php?keywords=bms+work*&terms=all&author=&sc=1&sf=titleonly&sr=topics&sk=t&sd=d&st=0&ch=300&t=0&submit=Search Not everything is relevant, mostly easy to figure out by title. charging w...
by amberwolf
Dec 11 2018 10:27pm
Forum: General Discussion
Topic: Discussion on counterfeits
Replies: 6
Views: 156

Re: Discussion on counterfeits

These third shift goods aren’t counterfeits in the traditional sense of the word. OEMs use exactly the same materials and production processes to make additional products that are then sold through unauthorized channels. ...then the products will be of the same quality as those "OEMs" units from th...