Search found 10123 matches

by spinningmagnets
Jan 16 2019 12:03pm
Forum: E-Bike General Discussion
Topic: I bought an E Bike for my wife but she says its to slow
Replies: 10
Views: 287

Re: I bought an E Bike for my wife but she says its to slow

Plenty of ebikers are happy with 250W. But...if she wants more power, I say why not? Hard to say how much power she would be happy with until she takes a test ride. My "go to" answer is a 52V BBSHD with three gears on the rear wheel IGH, or 6-speed mega-range freewheel and derailleur. That's my favo...
by spinningmagnets
Jan 15 2019 12:20pm
Forum: E-Scooter and Motorcycle General Discussion
Topic: Knight Electric Motorcycle 5000w
Replies: 19
Views: 327

Re: Knight Electric Motorcycle 5000w

At 72V, 5000W / 8000W is 70A and 110A.

As much as $1000 is worth saving, buying the lead acid and making my own lithium battery is not the only consideration. The 8000W is certain to have a much larger controller to handle the extra 40A
by spinningmagnets
Jan 15 2019 9:08am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Knight Electric Motorcycle 5000w
Replies: 19
Views: 327

Re: Knight Electric Motorcycle 5000w

I'm certain they have threaded mounts to screw-in mirrors. All three pics look like they were taken at the same shipping facility. It's a safe assumption that the vendor got a shipment from the wholesaler and simply needed to rapidly unbox the three colors he had in order to take pics for the sales ...
by spinningmagnets
Jan 15 2019 8:31am
Forum: General Discussion
Topic: Fiat Chrysler pays millions...
Replies: 14
Views: 185

Re: Fiat Chrysler pays millions...

People who pay extra to get the diesel engine as an option have been polled to see why. The majority liked the high torque and good fuel mileage. The mileage is improved by running lean, but doing that results in higher nitrides of oxygen / NOx. The software was written to sense when the emissions a...
by spinningmagnets
Jan 14 2019 7:39pm
Forum: General Discussion
Topic: Fewer Americans bike to work despite new trails, lanes and bicycle share programs
Replies: 14
Views: 314

Re: Fewer Americans bike to work despite new trails, lanes and bicycle share programs

Cheap gas...
I've seen several cycles before in the economy and ebike sales. Cheap gas is a major factor in US customer purchases. It's $1.85/gal right now near me in N.E. Kansas.
by spinningmagnets
Jan 13 2019 11:22am
Forum: Battery Technology
Topic: Zero 2012 XU
Replies: 3
Views: 72

Re: Zero 2012 XU

I think your best bet is to look for Chevy Volt cells. Their side dimension is 177mm X 127mm.

The capacity of each cell is 15-Ah. There may be a better option, but these are reasonably affordable, available, and they will fit.

https://endless-sphere.com/forums/viewt ... 0#p1307267
by spinningmagnets
Jan 12 2019 6:02pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 521
Views: 62528

Re: kWeld - "Next level" DIY battery spot welder

Does that shipping cost have a break-down you could post? Some places have a Value Added Tax / VAT, and many countries have a customs fee. There might even be other charges that a dealer shipping from one US state to another US state would not be affected by...
by spinningmagnets
Jan 12 2019 11:39am
Forum: Motor Technology
Topic: Waterproof your controller connectors on the cheap
Replies: 4
Views: 155

Re: Waterproof your controller connectors on the cheap

Good job, it is obvious that this is much better than the stock connectors flapping in the breeze. I'd like to suggest something that I believe will be a small improvement. Have all the wires enter the plastic junction box from one opening, and locate that opening facing downwards. A sort of "drip l...
by spinningmagnets
Jan 11 2019 4:33pm
Forum: E-Bike Technical
Topic: Waterproof wire nuts vs soldering connections
Replies: 10
Views: 234

Re: Waterproof wire nuts vs soldering connections

Wire nuts work fine on 120V house connections. The higher volts can easily penetrate mild oxidation (copper is brown instead of bright reddish). Plus...houses don't experience the same moisture, vibration, and jolts that an ebike experiences... Even if a wire nut holds the connection for a year, it ...
by spinningmagnets
Jan 11 2019 10:24am
Forum: Motor Technology
Topic: Infinitum PCB stator AC motor
Replies: 2
Views: 102

Re: Infinitum PCB stator AC motor

There is a kick-scooter that has this type of stator, I can't remember the name.

This style of stator is good for high volts, low amps...
by spinningmagnets
Jan 10 2019 7:05pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why 750w costs less than 1000w BBSHD?
Replies: 11
Views: 371

Re: Why 750w costs less than 1000w BBSHD?

Is there a chance that the lower priced unit was a BBS02?

Are the kits you are looking at including the battery pack? Or just the drive unit kit?
by spinningmagnets
Jan 10 2019 1:20pm
Forum: Battery Technology
Topic: Building a high Amp output battery question
Replies: 37
Views: 590

Re: Building a high Amp output battery question

Which cells are you hoping to use? You might investigate Chevy Volt cells as an option.
by spinningmagnets
Jan 06 2019 7:25pm
Forum: E-Bike Reviews & Testing
Topic: Luna Black Box: anyone tried it yet?
Replies: 11
Views: 1504

Re: Luna Black Box: anyone tried it yet?

Looks like something that might appeal to a dealer who installs BBSXX drives...
by spinningmagnets
Jan 05 2019 4:06pm
Forum: Motor Technology
Topic: Sensorless at standstill, development updates and status
Replies: 78
Views: 4279

Re: Sensorless at standstill, development updates and status

Lebowski, open a Patreon account, and I will donate today.
by spinningmagnets
Jan 05 2019 11:54am
Forum: Motor Technology
Topic: Sensorless at standstill, development updates and status
Replies: 78
Views: 4279

Re: Sensorless at standstill, development updates and status

Every open source project I've found has a very happy and enthusiastic "paying customer" base. I can't speak for everyone, but from my perspective, my support of an "open source" product over proprietary is that I know if the company (or original creator) abandons the updates and support, there is a...
by spinningmagnets
Jan 05 2019 11:40am
Forum: Forum Rules and Features
Topic: Forum styling changes to enhance the look
Replies: 24
Views: 971

Re: Forum styling changes to enhance the look

The US military had a lot of problems with people from different regions writing-in the date (Europe/USA/etc...AM/PM). They chose Numerical 2-digit day, 3-letter written month, full four digit year, 24 hour clock I'm not saying its a good idea, just presenting options for consideration. "Nov 06 2018...
by spinningmagnets
Jan 04 2019 5:36pm
Forum: Battery Technology
Topic: Spot welder capable of 24 awg fuse wire?
Replies: 2
Views: 133

Re: Spot welder capable of 24 awg fuse wire?

If I was you, I'd get a small microwave oven from a thrift shop ($25?), and make a MOT welder. Then experiment with old cells. Wind the transformer for 6V (6 turns of 12ga?). Cheap experiment, and if it doesn't work, you can make it a resistance soldering unit RSU... https://www.electricbike.com/res...
by spinningmagnets
Jan 04 2019 4:03pm
Forum: E-Bike General Discussion
Topic: A Tesla electric bicycle?
Replies: 26
Views: 733

Re: A Tesla electric bicycle?

If Tesla has profits they need to "invest" (*or pay taxes on), I'd recommend they invest in Zero, rather than compete head to head...

Solid state batteries will be available soon, and Alta has been hobbled with no rescue in sight...just a thought...
by spinningmagnets
Jan 03 2019 5:27pm
Forum: Battery Technology
Topic: Fuse-wire for individual cells, DIY Tesla style
Replies: 98
Views: 12299

Re: Fuse-wire for individual cells, DIY Tesla style

Just practice on a handful of old cells. whether you spot-weld or solder, you will achioeve good results with a little practice. If you go the solder route, you must use a high-amp soldering iron with a lot of tip-mass (fat tip, not a sharp point, mine is 100W). If the tip mass is too small, it will...
by spinningmagnets
Jan 02 2019 7:05pm
Forum: E-Bike General Discussion
Topic: A Tesla electric bicycle?
Replies: 26
Views: 733

Re: A Tesla electric bicycle?

I hope they do make an ebike, but...clearly not this abomination of bad design. I'm told the model-3 uses a switched reluctance motor, with the specific design goals of severely reducing the cost, while still performing as well as the previous induction motors. They succeeded, so I'd love a switched...
by spinningmagnets
Jan 02 2019 6:44pm
Forum: Battery Technology
Topic: Fuse-wire for individual cells, DIY Tesla style
Replies: 98
Views: 12299

Re: Fuse-wire for individual cells, DIY Tesla style

As far as where to put the probes, I would file a shallow slot into the tip of one probe to "hold" the fuse wire. Press the fuse wire down against the shoulder of the cell, and place the other probe on the cell shoulder just a short distance away. What's inside an 18650 cell https://www.electricbike...
by spinningmagnets
Jan 02 2019 1:03pm
Forum: Battery Technology
Topic: Fuse-wire for individual cells, DIY Tesla style
Replies: 98
Views: 12299

Re: Fuse-wire for individual cells, DIY Tesla style

It's my understanding that the Malectrics and kWeld spot welders have both been used to bond fuse wire to 18650's with successful results. I haven't tried that yet, but it may be worth looking into.