Search found 148 matches

by j bjork
May 19 2019 12:13pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Another "stelth bomber" build.
Replies: 27
Views: 1874

Re: Another "stelth bomber" build.

I have been driving around in the woods pretty much these last 2 weeks or so. It will probably be what I use this bike for mostly. So I realized I need better protection for the wiring to the controller. I also have a clearance issue between the fender and the controller when the suspension bottoms ...
by j bjork
May 11 2019 3:45pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Another "stelth bomber" build.
Replies: 27
Views: 1874

Re: Another "stelth bomber" build.

A little update of how my work on the sheap chinese controller went: https://i.imgur.com/5DmtX4Hl.jpg I think I killed a mosfet with static electricy, I noticed a little "pop" when I soldered next to a mosfet. I connected a 20A fuse in series with the controller for testing when my soldering was don...
by j bjork
May 09 2019 12:38pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Another "stelth bomber" build.
Replies: 27
Views: 1874

Re: Another "stelth bomber" build.

How it looks by now: https://i.imgur.com/nGlrizql.jpg https://i.imgur.com/NJMtmHfl.jpg The side panels will get painted later on. The shield for the controller will get shanged too, I will probably paint them at the same time. My watt meter: https://i.imgur.com/onHBkwjl.jpg It was not intended for t...
by j bjork
May 09 2019 12:26pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Another "stelth bomber" build.
Replies: 27
Views: 1874

Re: Another "stelth bomber" build.

Alright, another update. We are not really up to where I am in the build yet, but we are closing in :wink: My plan is to use the nucular 24fet controller, but it is not finished yet. So I got a cheap chinese controller to use in the meantime: https://i.imgur.com/GGVxyncl.jpg https://i.imgur.com/hjMN...
by j bjork
May 09 2019 12:24am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 456
Views: 39432

Re: Nucular electronics - complete kit for ev! [beta]

If it has not changed, the dimentions are on the first page: Maximum power 20 000W Nominal power 10 000W Voltage range 20-90V Phase max 500A Battery max ~300A Supply out: 12V 1A, 5V for sensors, each line 100mA PPTC Limiting temperature +80°C Phase wires 6AWG terminals Battery wires 8AWG XT150 Size ...
by j bjork
May 08 2019 4:57am
Forum: E-Bike Reviews & Testing
Topic: Epic 7kw+ 12 fet controller...or there abouts :)
Replies: 135
Views: 6566

Re: Epic 7kw+ 12 fet controller...or there abouts :)

Interesting thred :wink:

Has there been any progress with this project?
by j bjork
May 08 2019 4:09am
Forum: Battery Technology
Topic: Pack build from LG automotive cells
Replies: 25
Views: 1024

Re: Pack build from LG automotive cells

It looks good :)
So you are using the modules as they are, and basically building a cover for them?
by j bjork
May 03 2019 3:11am
Forum: E-Bike Build Threads / Photos & Video
Topic: Another "stelth bomber" build.
Replies: 27
Views: 1874

Re: Another "stelth bomber" build.

(The last picture in the previous post) The right switch is the 3 speed switch, the mittle one is lights off, parking light and for low or high beam. Depending on the left switch, which controls high/low beam. It also has the indicator light for high beam, I intend to use it just as an indicator if ...
by j bjork
May 02 2019 3:25pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Another "stelth bomber" build.
Replies: 27
Views: 1874

Re: Another "stelth bomber" build.

I have built the electrical system too, the 12v converter: https://i.imgur.com/MKs7dS9l.jpg I did´nt think about it when I bought it, but it has a common ground. I don´t like that, now it is a bigger risk to come in contact with high voltage, because the ground is the same in the 12v system :? I am ...
by j bjork
May 02 2019 3:00pm
Forum: Motor Technology
Topic: New mosfets in china controller
Replies: 4
Views: 165

Re: New mosfets in china controller

Ok, thanks.
I think I would like to be around 100A..
At least 80-90A, but 100-120A would be better :wink:
Not constantly thogh.
by j bjork
May 02 2019 10:54am
Forum: Motor Technology
Topic: New mosfets in china controller
Replies: 4
Views: 165

Re: New mosfets in china controller

Thanks, I am on the right track then atleast :) But are they ok choices, or really good? I have looked at AOT290 that I have seen here on the forum, as a really good choice I think: https://pdf1.alldatasheet.com/datasheet-pdf/view/487356/AOSMD/AOT290L.html Those seem hard to find around here, and fr...
by j bjork
May 02 2019 6:01am
Forum: Motor Technology
Topic: New mosfets in china controller
Replies: 4
Views: 165

New mosfets in china controller

I have a cheap 18fet temporary controller, that now has some blown mosfets.. It seems to be the same as the newer greentime controllers. I think I damaged a mosfet with static electricity when I was beefing up traces and wiring and such, but when I looked at datasheets I discovered they were only 80...
by j bjork
May 01 2019 5:23am
Forum: E-Bike Build Threads / Photos & Video
Topic: Another "stelth bomber" build.
Replies: 27
Views: 1874

Re: Another "stelth bomber" build.

I drilled holes to the sides of the cells in the box, I hope it will help to release fumes if a cell vents. https://i.imgur.com/Eca951Wl.jpg https://i.imgur.com/m7S0o2xl.jpg It seems like I didn´t get any pictures of how it looks when it was finished, but I used this rubber carpet in the bottom: htt...
by j bjork
May 01 2019 4:59am
Forum: Battery Technology
Topic: Battery box for lipos
Replies: 6
Views: 264

Re: Battery box for lipos

Hello, I thougt I should update a little of how it turned out. I drilled holes to the sides, it was a lot of work to get them smooth on the inside.. I did´nt want any sharp edges possibly damaging the cells. https://i.imgur.com/m7S0o2xl.jpg https://i.imgur.com/Eca951Wl.jpg Pictures of an empty box. ...
by j bjork
Apr 29 2019 7:48am
Forum: Motor Technology
Topic: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)
Replies: 3534
Views: 191346

Re: KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW

I see reference to the 12 and 18mosfet varieties, but can't find these in the sine wave controllers anywhere. Here is one example, there are probably a bunch more out there: https://www.ebay.com/itm/48V-1500W-Brushless-DC-Sine-Wave-Ebike-Controller-Regenerative-Function/232088804925?hash=item360992...
by j bjork
Apr 25 2019 5:45am
Forum: E-Bike Build Threads / Photos & Video
Topic: Another "stelth bomber" build.
Replies: 27
Views: 1874

Re: Another "stelth bomber" build.

Thanks for the replys. I have done some more work, but I have not had time to update yet. About wiring, none is finished on the pictures. I had just hanged the wiring for the motor there, to not have it dragging in the ground when moving the bike. It is more finished now, and I have made some of the...
by j bjork
Apr 25 2019 12:26am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 456
Views: 39432

Re: Nucular electronics - complete kit for ev! [beta]

It would be interesting to see how the connection for the phase wires looks on the 24 fet:
"Phase wires 6AWG terminals"
I thought it was screwed on the controller, but it does´nt look like it in the picture.
by j bjork
Apr 18 2019 7:28am
Forum: Battery Technology
Topic: Battery box for lipos
Replies: 6
Views: 264

Re: Battery box for lipos

Thank you both :)

It will only be pressure on the flat side. It is 2 sets of packs, mounted in 2 directions because of space limitations.
They have one"door" each, and 3mm aluminum plate between them.
by j bjork
Apr 17 2019 3:49am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 456
Views: 39432

Re: Nucular electronics - complete kit for ev! [beta]

Hi, can you tell me what end of the xt 150 is mounted on the 24 fet controller?
(Battery leads) I am trying to make a wiring that will fit as much as possible when the controller is finished :wink:

What contacts are you using on other connections, like throttle and such?
by j bjork
Apr 16 2019 12:44pm
Forum: Battery Technology
Topic: Battery box for lipos
Replies: 6
Views: 264

Battery box for lipos

I am building a box for my lipo packs for the bike. I have some questions, mainly how much pressure is good to have on them? I hope that will lower the risk of puffing to mont them with some pressure. This is what the box looks like: https://i.imgur.com/x8JNXAnl.jpg https://i.imgur.com/8gWyr7vl.jpg ...
by j bjork
Apr 16 2019 12:03pm
Forum: Motor Technology
Topic: Greentime controllers
Replies: 975
Views: 109986

Re: Greentime controllers

That looks very simular to my 18 fet from semewhere else: https://endless-sphere.com/forums/viewtopic.php?f=2&t=99535&p=1457323#p1457323 What is that jumper wire for, the red one on the underside? Do you have pas, and where is it connected in that case? I don´t have any, but there are a bunch of unu...
by j bjork
Apr 14 2019 12:19pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Another "stelth bomber" build.
Replies: 27
Views: 1874

Re: Another "stelth bomber" build.

Some more pictures of the battery box: https://i.imgur.com/voF7Ezrl.jpg It is mainly built of 2mm alu, with reinforcements on the pressure sides like this. On the other side of the nanotech packs I used a 3mm plate instead, becase I did´nt want to use reinforcements when they face the other packs. I...
by j bjork
Apr 14 2019 11:35am
Forum: E-Bike Build Threads / Photos & Video
Topic: Another "stelth bomber" build.
Replies: 27
Views: 1874

Re: Another "stelth bomber" build.

Okay, I will update a little. I have not got very much pictures, I did´nt bother to get pictures of details. It does´nt seem to be much interest anyway. Painted fenders and parts: https://i.imgur.com/svEVnuIl.jpg https://i.imgur.com/4uB1PZkl.jpg https://i.imgur.com/yCLK4cQl.jpg https://i.imgur.com/d...
by j bjork
Apr 07 2019 12:14pm
Forum: E-Bike Technical
Topic: What controller do I have?
Replies: 6
Views: 221

Re: What controller do I have?

From what I can find, the jumper wires I have is for self learn and for cruise. x and ds should be for regen/eabs. From the other thread: "The "power and electric lock" function is straightforward. The heavy red and black are your main battery power, and the orange wire is the "ignition" which provi...