cell_man wrote:That's what is available. I don't dress them up like most others do. I'm sure you will be very happy with the performance, just hope those you had already sourced work as well
You've got a few choices when it comes to buying A123 26650s, buy some old questionable stock from some unknown Ebay store and get 3 year old cells, that is what you will almost certainly get if the cells are any cheaper than my prices. I've tried cells like this, they work ok, but the self discharge was really bad and the capacity was all over the place. I've been told a lot of cells that were supposed to go to the recycling plant some time ago, never made it there. Buy good cells like I sell, some put a 2nd layer of shrink wrap on them, which generally sell for just a little more than my prices, they are the same cells from the same source. Buy from A123 Racing or Enerland for about 15USD a cell.... Buy some Dewalt packs and harvest the cells. As far as I have seen the Dewalt packs that were sold cheap, had cells that were generally about 3 years old. Not suggesting they are bad, but I think the fact that they were 3 years old had something to do with why a lot of these packs were going for good prices.
I go to the expense of testing my cells, they are legit, from a good source and I'll soon be offering assembled packs when I get my head around the spot welder that just arrived today. I don't believe you can get good A123 cells for less than what I am selling them for. I've already supplied significant quantities of the A123 Pouch cells and I'm now offering these 26650s. If I was supplying bad products, it would be common knowledge by now.
Like I said there are a few suppliers in china that get the same cells I do. Most will put another layer of shrink wrap on them. These are good cells and preferred to some of the older stuff that is going around IMO. I wouldn't have spent big $$s buying cells, getting them tested and buying expensive equipment to terminate them if I wasn't confident in their quality and bad news spreads quicker than good, so it wouldn't be in my best interests to sell 2nd rate parts.The Mighty Volt wrote: Oh, hey, you have you my confidence, otherwise I would never have parted with my hard earned. Your postage was also top-notch, Lyen-esque!!! I am just seeing a lot of A123 these days, and no two batteries look alike. The ones I have bought from members of this board have all charged and discharged really fast. The best thing is that this board is made up of enthusiasts and not just salesmen per se. I wouldn't hesitate to recommend your stuff.
I know you had a thread on terminating the pouch cells......I remember that now, seemed like a lot of effort!!
Well I don't know about perfection but we can trycassschr1 wrote:Because there's nothing like perfection!
Well that is nice to here, i'm tired of SLA's and mixing SLA's with nicads etc. etc. I would like to finally get a nice pack (that i can afford) for my bike. I can not pass this deal that your offering.cell_man wrote:I can assure you. You will not see that sort of sag on a Pack built with A123 cells. How many parallel cells were you thinking of running?
I would love to do that, the reason i wanted to go with the odd packs is because i was afraid of it ruining my controller, 2-8s would give me 52.8v, but fully charged, it might go over my controller limit, and blow it. (i have no idea if it will, i just can't afford the chance right now)cell_man wrote:Hi,
I would be tempted to stick to 2 * 8S packs, rather than having odd packs. The extra voltage will give you a little extra speed as well, which is always nice.
I really want these batteries, and I will drop you a pm, But i cannot have you build the packs for me (i need to build it myself in order for it to fit in my Fake motor (Pic Below)cell_man wrote: A pack like this would easily run 6 or 7KW without even pushing it hard. If you weren't going far a 2P pack would still provide ample current. You really will not believe the lack of voltage sag on the sort of power levels you are planning. Drop me a PM, we can go through your options for the pack configuration.
I think I will wait till you come back, I have right now $10.01 in my paypal account (that's not much of a down payment )cell_man wrote: BTW I should be able to terminate the cells before I leave next Tuesday if you are ready, even if you get a deposit ASAP, I can get it built and it can be forwarded once payment is cleared. However, if it's a bit more involved than a straight forward pack, it's better to wait until I return.
It's an e-crazyman controller, so hopefully your right, i think i'll go with the 2- 8s.cell_man wrote:If it's a 48V controller it should have a 63V Caps and at least 60V Fets, more likely 75V. I am certain that you will not have a problem running 16S A123 on a 48V Controller.
I do have a spot welding machine, so drop me a line and I'll see what I can do.suzuki111 wrote:hi
im building a new bike and i have decided to use a 1200w motor 48V could be up to 60amp current draw and about 15ah. I would like to fit the batterries inside a aluminium tube dimensions approx 165mm deep by 85mm wide by 400mm long. Can you suggest if you can help me or not and if so what cost delivered to australia ?