Search found 1227 matches

by mlt34
Jun 21 2017 7:13am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

banjaxxed, what is the material in the wire making the series connections?
by mlt34
Jun 21 2017 1:29am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Matador wrote:I used the Foxnovo Digital Charger 4S
I have one of those, but I think it lies to me. When I choose 1/2A discharge, it does more like a quarter. And when I choose 1A discharge, it does more like 1/2A. Other than that, it works well. Does yours do the same thing?
by mlt34
Jun 19 2017 1:08am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Matador, that's some great performance for old laptop cells, impressive! But you're absolutely right, no bulk charging, especially for salvaged cells. Either balance charge or use a BMS. If you have to bulk charge, and you have an adjustable charger, set it for something like 4.0V per cell, just to ...
by mlt34
Jun 19 2017 1:03am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Creative! Is it running all the way down the parallel group, under the SS busbars? Or just connected to that first post? All the way down the 8P group. But it occured to me, current between cells of a same 8P groupe don't exchange much current between themselves (few milliamps maybe, by parallele b...
by mlt34
Jun 18 2017 10:07am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Creative! Is it running all the way down the parallel group, under the SS busbars? Or just connected to that first post?
by mlt34
Jun 18 2017 9:20am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Matador, that's an awesome copper busbar connector there, love the way you did that!
by mlt34
Jun 18 2017 7:30am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

@Dasdouble, as we've been saying publicly for a while now, we are currently at work on version 2 which will have the upgraded busbars and contacts that you're talking about. Also, the zipties aren't for holding the pack together, they are just there for peace of mind. I don't use them on my packs an...
by mlt34
Jun 17 2017 1:47pm
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

I've tested up to about 9A myself, but the contacts get pretty warm and resistance increases. 3.5A seems to be the sweetspot for still getting great performance with little heat. 5A is in the acceptable range, with a slight increase in temperature and resistance. This is all for the Stainless Steel ...
by mlt34
Jun 03 2017 7:55am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Looking good, what are you powering with it, craiggor?
by mlt34
Jun 01 2017 12:24am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

I ordered one kit from India with the cheapest shipping option and was impressed how fast I received it. It was less than 2 weeks, with no additional custom fees. I'm located in Quebec, Canada. That's impressive! In the past it has taken longer but sometimes it is quite quick. Hopefully they all ar...
by mlt34
Jun 01 2017 12:22am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

im located in denmark. How long until there is a european warehouse? Should i just order from india and wait for my package to arrive or am i better off just waiting until shipping is available from somewhere in europe? I wont be needing the vruzend kits until mid july. Plans are in the works, but ...
by mlt34
May 31 2017 11:29am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Matador wrote:There, just ordered two (2) 14S-30A BMS ! Shipping reasonnable indeed !

Matador
Just saw them come in. They'll be on their way to you shortly!
by mlt34
May 31 2017 9:36am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Matador, You're absolutely right, and the Canadian shipping is killing me. I'm really sorry about that. I've looked for every shipping option possible and that's the cheapest we could get the USA to Canadian shipping so far, using USPS. It's still ridiculously high though. The problem is that while ...
by mlt34
May 31 2017 12:40am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Don't ever apologize for a $27 battery building kit that has virtually no competition right now. You can always lower prices over time as sales volume increases, and also when competing kits become available. I would have started out with the price-per-kit being higher, and if anyone complained?......
by mlt34
May 30 2017 11:08pm
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

No doubt it's a great kit. It's priced $27 -up $8/kit (from $19 forum price)+ $24 shipping for 4 kits Unless someone can't do elementary math, that's still $8 up in price. And vets gets $1 off :( Yes the per kit price went up, but the shipping went way down. To give you and idea, shipping per one k...
by mlt34
May 30 2017 1:39pm
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

mit34, Do you have a website you can link to , with information about these like cost for different amounts, what all parts are needed to assemble, examples of made packs from this system and shipping costs to U.S. address ? Please PM me with a link to your website / product info on your site, sinc...
by mlt34
May 30 2017 5:20am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

My guess is you wouldn't want to end on a single cell either at the point of a triangle - preferably two maybe three in a row to ensure adequate support That is also true. Having a few cells at the small ends of the triangle will be better and make the electrical path more robust. I just went with ...
by mlt34
May 30 2017 12:51am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Sorry for not making myself clear, I was asking about the suggested method of making the ELECTRICAL connections between cell groups in a triangle pack. Do you see a way to use the electrical connectors in your kit, or would we need to use something like individual wires and ring connectors? Thanks ...
by mlt34
May 30 2017 12:41am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Website is cool and all, but I gotta confess that I find this image on the site quite amusing. As a veteran, I'm not sure what is so funny about it? Especially since you posted this on Memorial Day, which before mattress sales and BBQ's, was a day when people paid tribute to those who volunteered a...
by mlt34
May 29 2017 1:35pm
Forum: Items for Sale - New
Topic: New LG MJ1 18650 cells (3500 mAh, 10A continuous) USA only
Replies: 0
Views: 542

New LG MJ1 18650 cells (3500 mAh, 10A continuous) USA only

Just wanted to mention that for anyone in the US that is looking for LG MJ1 18650 cells, they are now available here for $8.89 for a set of two: http://vruzend.com/product/set-of-2-lg- ... ery-cells/
by mlt34
May 28 2017 3:41pm
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

I have been following this discussion, and wondering how someone would connect the cell caps when making a triangle pack. I don't have a kit in front of me, but it seems like the connectors betweens rows/blocks of cells wouldn't line up. Would you just use ring connectors with wires between the cel...
by mlt34
May 26 2017 4:18pm
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

When configuring the busses, I would draw on the sides of the plastic holders with a fat black felt marker to ensure I don't make a short Good call! I actually did that on the cells in the video, but doing it on the caps would also be good. Anything to keep you focused and from making a simple mist...
by mlt34
May 23 2017 11:53am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

When making a triangular pack I would mapped it out on a piece of paper first pos and neg and have that piece of paper in front of me before I put the lid on it to snap it together. Absolutely. When I make anything other than a normal, square pack, I draw it on paper on both sides, so I literally f...
by mlt34
May 23 2017 5:52am
Forum: Items for Sale - New
Topic: DIY assembly kit for 18650 without spot welding/Soldering
Replies: 505
Views: 88882

Re: DIY assembly kit for 18650 without spot welding/Solderin

Actually that's what i first thought but vuzend said it would be harder to attach them with cells Yea in response to what he said, you basically just have to be more careful and focused while you're working, because it will be easier to accidentally mess up if you are making abstract shapes. With r...