Search found 39 matches

by RebelRider.Mike
Mar 09 2019 3:04am
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Re: Dirt Cheap DIY eBike

Here's part 6: An intro to the bike I'll be using, a ton of battery design, and a little about the actual real life battery I made. LliqwBLe7Os The BMS board is finally in the US, so I hope to get it next week some time. I've also got connectors, threaded rod, shrink wrap, and nylon bits. I'm about ...
by RebelRider.Mike
Mar 03 2019 2:50am
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Re: Dirt Cheap DIY eBike

A short video on how I test cells:
by RebelRider.Mike
Mar 01 2019 4:13am
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Re: Dirt Cheap DIY eBike

Finally got my 3A fuses in the mail! Still working on the next video, but in the meantime, I took a bunch of pictures. https://i.pinimg.com/originals/37/4e/37/374e3722774eb572a427502642509fdd.jpg Organising cells via repacker. https://i.pinimg.com/originals/c3/20/e9/c320e943d105defa9e1c2ad60e0f727e....
by RebelRider.Mike
Feb 18 2019 1:25am
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Re: Dirt Cheap DIY eBike

Thanks guy, I really appreciate the encouragement. And I really mean that! :) I definitely want to do a good and effective job, and I think I can do that with what I've got, or things I can get cheaply. Maybe I should keep track of expenses as I go... Speaking of expenses, the one thing I just could...
by RebelRider.Mike
Feb 17 2019 8:36am
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Re: Dirt Cheap DIY eBike

Ok, y'all have made it pretty clear that you either don't approve of, or don't understand the point of, my project. Here's the thing. I have precious little money to spend on this. And folks around where I live want top dollar for their junk. I'm not kidding! One guy on craigslist wants $20 for his ...
by RebelRider.Mike
Feb 14 2019 5:39am
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Re: Dirt Cheap DIY eBike

Last video on the motor, at least for a while. Finally got to use it at 24V, and I'm happy with the results. HqY-5JURd8Y Waiting on some parts so I can move on to the battery. The cells are ready to go, but I've got to make sure the shape I have will fit in the bike, and none of the soldering has be...
by RebelRider.Mike
Feb 02 2019 9:53pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Re: Dirt Cheap DIY eBike

Ok you guys, if the starter doesn't work, I'll go find an alternator. In the mean time, I figured out the issue with the controller, and improved on some things, and made a bit of overall progress. Originally, I was thinking that current was the primary generator of heat in these things, but after p...
by RebelRider.Mike
Feb 01 2019 8:32pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Re: Dirt Cheap DIY eBike

Thanks! I will be watching the whole series.

I've decided to go ahead and make a video series too. The first couple will be if I can get the starter motor to work well enough to use on the bike:


The next video I'll upload soon. :)
by RebelRider.Mike
Jan 28 2019 9:03pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Re: Dirt Cheap DIY eBike

Well, I ended up with 132 of the same type of cell, all of which passed testing! The best 128 will get used in the new battery. I finally took some actual measurements to see what kind of space I've got available in the triangular space in the middle of the bike. Since I've changed my plans, as well...
by RebelRider.Mike
Dec 26 2018 8:02pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Re: Dirt Cheap DIY eBike

Finally have a potential motor for the eBike! Along with a sprocket for the rear wheel. https://i.pinimg.com/originals/86/2c/1c/862c1c840c777bf5600f42fa18341751.jpg I'll have to figure out a way to make the two work together. As they are, they're not compatible. I've also made a purchase of 25 batte...
by RebelRider.Mike
Nov 08 2018 10:50am
Forum: E-Bike Build Threads / Photos & Video
Topic: Dirt Cheap DIY eBike
Replies: 27
Views: 2332

Dirt Cheap DIY eBike

I'm going to see how cheap I can make an eBike. All I've got right now is a nice bicycle that works well. https://i.pinimg.com/originals/ee/8d/3c/ee8d3c9c7840934822cf26967ec3f236.jpg If this looks familiar, it's because I've posted it before. I had to scrap that idea though as the components I picke...
by RebelRider.Mike
Jul 29 2018 1:34am
Forum: Alternative Energy
Topic: Mobile E-Bike Charging Station
Replies: 6
Views: 662

Re: Mobile E-Bike Charging Station

Cool setup. So you're getting something like 4 or 5 Amps into the battery in full sun? That's probably enough to keep the battery topped off and charge the ebike a the same time. Depending on how many Watts your bike needs to charge.
by RebelRider.Mike
Jun 28 2018 4:10pm
Forum: Alternative Energy
Topic: Looking into small DIY wind turbines.
Replies: 5
Views: 506

Re: Looking into small DIY wind turbines.

Thanks for the replies! I'm not sure how much wind I get. Each website I visit gives a different number for my area, and I'm not sure knowing the average would do much good anyway. I get a lot more in the winter than summer, and winter is exactly when I'd need it. I plan to build a hybrid grid-tie s...
by RebelRider.Mike
Jun 26 2018 8:53pm
Forum: Alternative Energy
Topic: Looking into small DIY wind turbines.
Replies: 5
Views: 506

Looking into small DIY wind turbines.

Hi folks, I've been looking at using solar panels to reduce my power bill, but in my region, they'll be almost useless in the winter. I'd like to supplement them with wind, but I haven't found much info on how to go about it. The websites I've come across assume an off-grid situation and are describ...
by RebelRider.Mike
Dec 27 2017 11:59am
Forum: Alternative Energy
Topic: Using an old car alternator to generate electricity...
Replies: 30
Views: 12858

Re: Using an old car alternator to generate electricity...

Thanks for the suggestions! I've made no progress on the "power bike" since my last post. My old car's carburetor bit the dust and I'm elbow deep in rebuilding it at the moment. But I did finally finish edditing the second video I made reassembling the alternator. JxQDqD6z5Jo I hope to make at least...
by RebelRider.Mike
Dec 03 2017 6:38pm
Forum: E-Bike General Discussion
Topic: Laptop Powered E-Bike
Replies: 21
Views: 1857

Re: Laptop Powered E-Bike

Thanks guys. 2.8v to 3v would be with a load. I already have the cells tested and built into batteries. My only roadblock right now is money for parts. Just like all my other projects, LOL.
by RebelRider.Mike
Nov 30 2017 4:00am
Forum: General Discussion
Topic: DIY battery pack for phone, tablet
Replies: 8
Views: 1025

Re: DIY battery pack for phone, tablet

Not sure if this is what you have in mind, but if I were making a DIY portable charger, I'd make one this way: - A TP4056 charge controller with Volt and Amp protection. https://smile.amazon.com/gp/product/B071RG4YWM/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 - A Volt meter. https://smile.amazon.co...
by RebelRider.Mike
Nov 30 2017 3:13am
Forum: General Discussion
Topic: How to keep LiFePO4 warm in cold climate?
Replies: 6
Views: 672

Re: How to keep LiFePO4 warm in cold climate?

This is an interesting thread. I have an issue that seems similar. I bought a drop-in LiFePO4 starter battery replacement for my motorcycle. Works great in the summer. Seems like it discharges in cold temperatures. I was assured when I bought it that it wouldn't have any issues with cold. Absolutely...
by RebelRider.Mike
Nov 30 2017 2:46am
Forum: E-Bike General Discussion
Topic: Laptop Powered E-Bike
Replies: 21
Views: 1857

Re: Laptop Powered E-Bike

Glad your bike is working well! The BMSs I've seen all seem to be made for xs1p configurations. Their little resistors are just insufficient to balance multiple cells in parallel. Maybe I'm looking in the wrong place though. At least over/under Voltage, and over-Amp protections is nice, but I plan t...
by RebelRider.Mike
Nov 21 2017 7:02pm
Forum: Alternative Energy
Topic: Using an old car alternator to generate electricity...
Replies: 30
Views: 12858

Re: Using an old car alternator to generate electricity...

I made a video of my alternator tear-down. Not gonna be a cinematographer any time soon, but here it is.
by RebelRider.Mike
Nov 14 2017 9:54pm
Forum: Alternative Energy
Topic: Using an old car alternator to generate electricity...
Replies: 30
Views: 12858

Re: Using an old car alternator to generate electricity...

I got the alternator attached to the bike. Its ugly, but its all just stuff I had laying around. The only expenses so far have been a spring and the belt. https://s-media-cache-ak0.pinimg.com/originals/d8/2a/f3/d82af3575af916512920ecad0d65b51f.jpg It's hard to pedal and look down at the multimeter a...
by RebelRider.Mike
Nov 04 2017 1:26am
Forum: E-Bike General Discussion
Topic: Laptop Powered E-Bike
Replies: 21
Views: 1857

Re: Laptop Powered E-Bike

Slow progress on the eBike, but its still going. The bicycle got a proper fitting rear rack installed. And a third battery got soldered together yesterday: https://s-media-cache-ak0.pinimg.com/originals/cf/8b/b7/cf8bb721f269a89bb27fbb32a9bd1e32.jpg Check out those solders. I'm getting better! https:...
by RebelRider.Mike
Oct 27 2017 10:44pm
Forum: Alternative Energy
Topic: Using an old car alternator to generate electricity...
Replies: 30
Views: 12858

Re: Using an old car alternator to generate electricity...

Sort of. The PMA has the added issue that output voltage is directly proportional to speed. So you'd have pedaling resistance based on your load. Interesting. I didn't know that would be the case. I'm thinking at some point, if I can come up with a good way to make a new shaft or two, I'll experime...
by RebelRider.Mike
Oct 26 2017 7:02pm
Forum: Alternative Energy
Topic: Using an old car alternator to generate electricity...
Replies: 30
Views: 12858

Re: Using an old car alternator to generate electricity...

Well, it doesn't look like I can get the rotor apart without breaking it. If I want to experiment with magnets I'll have to make my own shaft and magnet assembly. I'm leaning back towards keeping the original rotor anyway. A fellow from the old Honda Civic forum suggested I use the original external...
by RebelRider.Mike
Oct 26 2017 4:03pm
Forum: Alternative Energy
Topic: Using an old car alternator to generate electricity...
Replies: 30
Views: 12858

Re: Using an old car alternator to generate electricity...

Ok, I see what you're saying. The thing is though, that the resistance goes down with less power draw because the regulator is mucking about with the field automatically. A PMA can't be regulated that way, so the resistance would be the same regardless of power usage.