Search found 2733 matches

by ElectricGod
Oct 20 2019 4:25am
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 183
Views: 25289

20S LIOB pack build

This is the original pack next to the new pack I just built. https://i1055.photobucket.com/albums/s515/rkenders/EV%20Stuff/Battery%20builds/20S%20LION%20pack%20build/20S10P%20old%20pack%201.jpg https://i1055.photobucket.com/albums/s515/rkenders/EV%20Stuff/Battery%20builds/20S%20LION%20pack%20build/2...
by ElectricGod
Oct 18 2019 1:09am
Forum: E-Scooter and Motorcycle General Discussion
Topic: E-Bike XB-502 conversion project
Replies: 273
Views: 36519

Re: E-Bike XB-502 conversion project

Finally!That stupid scooter is done and out of my hair. I've done other stuff too in the process, but now I can get back to the XB-502 and getting it on the road with the rewound RV-120. I ended up replacing the hub motor in that stupid scooter. It has a short or scratch in the windings that at rand...
by ElectricGod
Oct 18 2019 12:47am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 792
Views: 66927

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

I don't mean to sound like an ass but iron losses are pretty negligent. I have plenty of experience with overvolting motors, generally up to 40V more than design. If you want to talk about losses then look at field weakening :!: I have a couple of inrunners where they are designed for 48v, but they...
by ElectricGod
Oct 18 2019 12:34am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 792
Views: 66927

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

Vasily, Please consider making 150v 24 fet controllers. I'll certainly buy them and I'm dead sure lots of other folks will too. I know several people that want them! What's more, you can charge more for the higher voltage version. How is that bad for you? I could NOT care less what the nay sayers an...
by ElectricGod
Oct 18 2019 12:04am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 884
Views: 101578

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

LOL, thanks for the Jackie Chan pic. In the nickel-copper "layered" pic, the nickel is only there to focus the welding current, instead of dissipating it, like a "copper only" bus would do. In fact, the nickel only needs to be a small square over the cell-ends, because a full-length strip would hav...
by ElectricGod
Oct 17 2019 4:15pm
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 183
Views: 25289

20S pack build

Last night I took apart the original 20S10P pack to get down to the cells. I removed the original dumb BMS and all the fiberglass sheet cladding. This got that pack down to it's minimum size possible. I'll probably reuse the existing balance wires and add a couple 10s balance connectors to them like...
by ElectricGod
Oct 17 2019 3:52pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 884
Views: 101578

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

I am not a fan of double layers of nickel strips (due to adding multiple bottlenecks), or the 0.30mm thick nickel strips (although the thicker single-layer nickel may be rated for higher amps, the total current will have to flow through the same area of weld-connections). Of course they both work, ...
by ElectricGod
Oct 17 2019 12:43am
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 792
Views: 66927

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

Clearly there is desire for higher voltage. I want this too. I'd have bought 2 of the 24 fet version that worked at 150v max if they existed. higher voltage controllers (mosfet based) are really only of benefit if you have a slow wind motor that is significantly underutilized at 80VDC, that you can...
by ElectricGod
Oct 16 2019 6:57pm
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 183
Views: 25289

Re: My excellent adventure through some battery builds

I view one of the main advantages of 18650 cells as the ability to configure packs into shapes that meet space constraints. Laying out the series/parallel groups is my favorite part of pack design :P You got it exactly! Space constraints defined the shape and size of the pack. It HAD to fit in a ve...
by ElectricGod
Oct 16 2019 6:52pm
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 792
Views: 66927

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

I should have added more explanation so that anyone can understand .... With a 4 month , or more with shipping , lead time to get controller /computer from nucular , I would not be getting anything from Nucular for several months from the time I decide to buy . That's how I see things: Nucular is a...
by ElectricGod
Oct 16 2019 3:59pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 884
Views: 101578

Re: New welding metal

If you feel like you need to. 2000 amps is the max allowed but some naughty people have gone over it and for some reason I think you will try it too :lol:. Calibration will not be possible at over 2000 amps but I hear it still welds.. Whaaaat?! ME naughty? I resemble that remark! hahaha 900 amps is...
by ElectricGod
Oct 16 2019 1:31pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Goped ESR high voltage cutoff
Replies: 41
Views: 3577

Re: Goped ESR high voltage cutoff

IMHO...why bother?

This controller is old and you can buy brand new brushed EV grade controllers that are a lot better and more powerful for less than $30.

Just my opinion, but I'd toss this is the scrap electronics bin and buy something new.
by ElectricGod
Oct 16 2019 10:43am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 884
Views: 101578

Re: New welding metal

It's nickel, stainless steel and copper. I asked if he could send me a sample of it so he sent me 12" of it. He has no supply yet so this with a lot of his very limited stock. As expected the .3mm nickel has the lowest resistance. But check out that .1mm thick alloy! Not much more resistance despit...
by ElectricGod
Oct 16 2019 10:40am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 884
Views: 101578

Re: New welding metal

.15mm = 50 joules .3mm = 100 joules So I'm guessing I need 30-40 joules for the .1mm alloy. But then since it is part copper and SS...who knows! I've never welded .3mm before. It takes a lot of energy to get decent welds and even then they are not as strong as the .15mm welds. 50 joules and .15mm d...
by ElectricGod
Oct 15 2019 11:38am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 884
Views: 101578

Re: New welding metal

check out that .1mm thick alloy! Not much more resistance despite being 1/3rd as thick. That's awesome! Curious to see how that welds. I'm not welding the alloy yet, but I'll get to trying it soon. Since the metal is so much thinner, I'm betting weld power needs to be reduced. This is my test based...
by ElectricGod
Oct 15 2019 3:52am
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 183
Views: 25289

Tripple 20S3P pack build

I have some PET tape coming to finish this up, but otherwise it's done. The dual 10S balance connections are on each sub-pack. https://i1055.photobucket.com/albums/s515/rkenders/EV%20Stuff/Battery%20builds/20S%20LION%20pack%20build/Mudworm%2020S9P%20complete%20pack%201.jpg The kapton tape will get c...
by ElectricGod
Oct 14 2019 9:37pm
Forum: Battery Technology
Topic: My excellent adventure through some battery builds
Replies: 183
Views: 25289

New alloy that is better than nickel

I bought some .3mm x 8mm nickel since the KWeld can handle it. The guy I got it from told me about a new welding strip he will be carrying soon. It's nickel, stainless steel and copper. I asked if he could send me a sample of it so he sent me 12" of it. He has no supply yet so this with a lot of his...
by ElectricGod
Oct 14 2019 9:37pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 884
Views: 101578

New welding metal

I bought some .3mm x 8mm nickel since the KWeld can handle it. The guy I got it from told me about a new welding strip he will be carrying soon. It's nickel, stainless steel and copper. I asked if he could send me a sample of it so he sent me 12" of it. He has no supply yet so this with a lot of his...
by ElectricGod
Oct 14 2019 1:16pm
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 792
Views: 66927

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

While waiting for your controller you can look at these pages. BATMAN Electric Scooter with a 24F and a Sur Ron with a prototype of 24F. https://www.facebook.com/permalink.php?story_fbid=2201137330183911&id=100008629961712 https://www.facebook.com/photo.php?fbid=474701419979882&set=p.47470141997988...
by ElectricGod
Oct 14 2019 12:01pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 884
Views: 101578

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

The aerogel fabric arrived Saturday, but so far I've had no time to do anything with it.

It's 1/4" thick, but then it's also rather compactable so I think it might compress to more like 1/8" thick.
by ElectricGod
Oct 14 2019 11:49am
Forum: E-Bike Technical
Topic: 20kw controller for vortex vector
Replies: 2
Views: 363

Re: 20kw controller for vortex vector

If you are planning on using that ASI controller, 20S is your max. If you want to run at higher voltages...like 24S, you need a controller capable of more voltage. Even though a controller may be rated for 100V, that is a maximum, not a continuous rating. The mosfets are the biggest issue here. They...
by ElectricGod
Oct 14 2019 11:38am
Forum: E-Bike Technical
Topic: Programming ASI Bac 8000
Replies: 4
Views: 174

Re: Programming ASI Bac 8000

I know how to program them. There's a fairly steep learning curve since it's all the "ASI way". There's lots of manual settings to do up front and things to try in various ways. ASI controllers can be rather quirky how they deal with some motors. Pack voltage and other details can also get in the wa...
by ElectricGod
Oct 11 2019 10:50am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 884
Views: 101578

Re: KWeld modding

tore off the resistor at R31. Looking at the other board it is labeled 657 or 650,000,000 ohms or 650 meg ohms, but that seems unlikely. Murphy got you, because that's a 6k57 0.1% precision resistor, which you most likely don't have in your drawer :-) That's part of the internal voltage reference g...
by ElectricGod
Oct 11 2019 1:19am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 884
Views: 101578

KWeld modding

Both my super cap modules have conformal on the small electronics now and I added balance leads to them. This is the second module. Sure enough they are all pretty close to the same voltage. So far after quite a lot of spot welding, the caps have worked fine at 9.44ish volts on both boards. https://...
by ElectricGod
Oct 10 2019 9:43pm
Forum: Items for Sale - New
Topic: Nucular electronics - complete kit for ev! [beta]
Replies: 792
Views: 66927

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

edit...

My controllers have shipped and are on the way.

RUSSIAN FEDERATION, MOSKVA PI-30, Processed Through Facility -> Your item has been processed through a facility in MOSKVA PI-30, RUSSIAN FEDERATION at 3:39 am on October 13, 2019.