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A place i can buy elsewhere?

omfg How do I turn off the music?!??

Talk slower

you state you do not need to do the positives as no current, can i ask how you worked that out, current flows from negative to positives as amps are not used in a circuit but are returned, i have never seen like this before from any other battery builder.

This is what I need, I think, can you please tell me the physical dimensions of the pack, I have limited space 👍

It looks like you're holding the probes too close and a bit more current would be what the doctor ordered.... Nice video.

Start my 1st motor controls class In a week and a half. Thanks for all the helpful information. Anyway I can support your channel I will man. Thanks again

Finally installed, coupled with their 52V high discharge. What a sunrise of a ride. On a 2002 Norco VPS DH. Eats hills like pigeons do bread crumbs. Didnt install cadence sensor or brake cut offs yet. Marzo bomber 300mm front forks with dual torque arms installed, just had to file the drop outs a millimeter or so to fit wheel. just as they say, 45/50km/hr up hill no effort. Once more, a great product that needs no alteration out the box. wonder if they worked on new features (one wheel drive possibilities, rear light ...) for the next gen controller? Anyhoot, Fantastic product, easy install and loads of fun... Wow. Really surprising at how fast it gets up to speed.

Thanks

Nice wiring

You should be using "sliced" tabbing wire since you want the welding current to go into the battery terminal. Not just thru the tabbing wire itself.

Good content, but what's the point of this annoying music on a 40 min video? :(

how are the 2 pairs connected together?

hello how much does this all cost roughly

how much would it cost total roughly

Hello dear don't give away your career 😊😅😊

Hello dear sir it's ok 002 hundred amps 😊😅

What kind of glue do you use?

As i say its worst then its came out like that then u make bike pack u never want that connection NEVER EVER u will ride on forest and all welds will just came out atvsame day

Docriate say u can do 10k welds till its breake i use 4 welds so it cant go bad it means u can spot weld only 2500cells for 100-150e ye all ok i tried weld fuse wired but all it do is explode so i just spot weld - side and put small dot of solder on +side with fuses 😅

If u rip it with fingers its bad super bad weld good weld u cant do thats IF U PULL OUT WITH FINGERS ITS BADDDD WELD!!!

Doctreate i use around 30 40level and welds only came out with pliers it welds hard i think i use 0.15mm for that and cant rip it off

This is an awesome and somewhat informative video for anyone wanting to start up a company as a battery supplier, manufacturer, wholesaler, But for anyone not interested in starting up a battery manufacturing company and is just interested in making a battery for their own personal use, ebike (etc).... The cost of supplies and tools could never possibly negate the cost of just doing the proper research needed to buy from a reputable supplier in china.

Docreate is best one ever i have same one it was factory defect but works perfect super stront fast fun to use for money only thing i can reconend 😊

Sqsw2 useless trash never get that never ever its failed badly for fuses maybe but its trash never trust that crap

Awithz that small crap is useless its not holding its failed badly

Music is a bit annoying

I would love to have you build me a battery. If that is possible. Let me know

you can travel all the world now :)

Really good building quality

Hello! Im in desperate need of help. I purchased a KT controller that is 48v 45amps. The problem im currently having is that. When i lift up the bike and MAX THROTTLE. It spins fast and fine But where theres WEIGHT added like if im sitting on the bike. The controller cuts the power to my hub motor but the system stays on still. Im not sure how to fix this

I was just about to start building another microwave based spot welder but updated with a microcontroller. The one I made ten years ago was loaned out and never came back. I had no idea that economical units were available until I found your video. Thank you for taking the time to share your knowledge with us.

This is so much better than the stupid music. Thank you!

I stopped watching after minutes, because of the background music.

Appears to be a nice video Some very good information Do you think you could redo it again Maybe next time don't drink so much coffee? You've been talking so fast in the video I can't keep up That's really bad cause it's a good-looking video

BIRFC.... Board and 60c 3s Lipo Best Bang for your Buck....

Does this count as your 3k vid? If so I'd like to put my name in the running for favorite comment. 50/50 at this point, lol No sob stories today but for some context, haven't been able to work for like 5 years now, can't ride my Katana cause of the weight which spurred my interest in ebikes, long story short that interest evolved into a desire to build my own (for cost efficiency), and eventually a pretty strong desire to start a non-profit for low cost, 3d printed, ebikes to provide low-income individuals to commute, etc. only problem is I have no idea where to start. Been fiddling around with 3d printing design and accidentally came up with a possible sturdy, low-cost frame (or the beginnings of one) while working on another project. Anyways I found you guys a few days ago and have been binging your stuff to learn a bit about battery building among other things. Just wanted to say the stuff you're churning out is real helpful and would love to see a course on how to build something from ground up. I did watch your video mentioning courses, but I don't think I'd be a major help on telling you what that should consist of. Regardless. Thanks for doing what you're doing. Hope everyone over there has a good day.

Some one please help me 😢I have motor or controller short circuit (sensor fault)

I would like to see a video about how to do cable management (the wire harness).

Great explanations but, as others have said, next time please reduce the volume of the music. And please, lube those chains, please.

Re-uploaded without music HERE th-cam.com/video/JQoNBRrjsdo/w-d-xo.htmlsi=9jmaOFRsoBQsbvcH

Oh no re-uploaded? What happened?

Thanks for taking the time to review the various types of welders and helping those considering a welder to gain some knowledge into the various options. That said IMHHO the welders should not just stick the strip to the battery. An OK weld will be take moderate effort to pull off with pliers, a proper weld will tear out sections of the strip. To me acceptable of most pack construction and Somewhere in the middle is a weld that (on tear off) is causing a decent amount of material transfer from the strip....IE the weld although not penetrating the strip fully causing tear out of small sections of the strip, it will melt enough of the strip to cause a substantial depression in the strip and corresponding deposition of nickel onto the battery terminal. This is the minimum I would consider acceptable for two reasons. One is that anything with less weld penetration and area will be transferring the current through a small area (when in use) and this will generate a lot of localized heating that over time will fatigue the weld and can cause it to separate. The second issue is even if this is in a very low current draw pack (say a true 250-350w e bike) the vibration of the cells in the pack encountered over bumps can also cause fracture of the welds.

How long does it take you in real time?

Does the p stand for the group.4 pos 4 neg in each group on each side. Looks like I have seven groups on each side. That would make this a 14 s 4 p . Can someone confirm that. Not making it trying to fix it. 52 volt 20 amp hour

I want to buy it and this video nicely showed how it looks installed. Thx for that. I like how clean and tidy look it has compared to those 2 piece solutions.

Wow, love it, what a great project, thank you, Subscribed. Wondering if one can swap batteries from another bike battery to another bike ? Which Batteries are like what you said please? you missed an important part 😂 young man, also where to get that kit or what is its Exact name, as one I saw was $895

What is the size of the wheels

You should be carrying a Tool kit "chain breaker" any ways.. The BBS02 can be set to 1470w, With my 52v batt and a 52t chainring i can hit 32pmh throttle only, 42 peddling as fast as i can full throttle, 46 drafting a box truck.! and only weight 55lb. All hub drives hate pulling a load "Trailer" at a slow pace.. Especially going slow on rocky trails. Mid drives excel at this and use the bikes derailleur.. "Mine 9 gears" I pull my trailer with the dog on trails that would burn up hub drives.. Yes there are builds that can handle what i do with my ebike.. as the more watts you push the more capable your build will be. Here in Cali the legal max is only 750w tho i'm pushing almost double that.. i'm able to ride with traffic when i have to and not bothered going up any overpass 😎 Where hub drives really shine is commuting in town / leisure riding.. But if you like hill climbs, trail riding and jumps "Off Road" I recommend The CYC X1 Pro Gen 4 5000W Mid Drive Conversion Kit.. yes you will pay big.. but you will have a crazy powerful electric motor cycle "Depending on your build.. there are many groups that can help you out on Facebook 👍

Hello dear friends it looks like real mountains bike 😅😊