Endless Sphere

banjaxxed, what is the material in the wire making the series connections?

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?

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 ...

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...

Creative! Is it running all the way down the parallel group, under the SS busbars? Or just connected to that first post?

Matador, that's an awesome copper busbar connector there, love the way you did that!

@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...

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 ...

Looking good, what are you powering with it, craiggor?

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...

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 ...

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!

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 ...

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?......

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...

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...

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 ...

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 ...

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...

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/

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...

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...

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...

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...