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-   -   Large Custom A123 packs? (http://www.rcuniverse.com/forum/batteries-chargers-84/10847784-large-custom-a123-packs.html)

bgosselin 12-07-2011 07:27 AM

Large Custom A123 packs?
 
Does anyone know where custom large packs consisting of A123 cells can be made? By "large", I mean something like 16s7p (yeah you read right), preferably with a built-in BMS. I know the pack price will be high - around $1500.

I know I can get the raw cells and put them together myself, but I'd rather have someone who has the proper "welding" tools do it properly without risk of damaging the cells from soldering heat.

pkoury 12-07-2011 07:34 AM

RE: Large Custom A123 packs?
 
My local Battery World does not stock the A123 cells but they will assemble A123 packs if I bring them the cells using their spot welder machine. If you call a battery store and ask about A123 cells make sure they know you are not talking about the small nonrechargable lithium battery for cameras that has the same A123 designation (it is a size and type code for that type of cell).

Capt Lou 12-07-2011 07:45 AM

RE: Large Custom A123 packs?
 
Look at the site www.hangtimes.com. This guy is really good and dependable and he may be able to help you with a custom pack. I have been buying A123 packs from him for three years and am a very satisfied customer

bgosselin 12-07-2011 07:54 AM

RE: Large Custom A123 packs?
 
Thanks for the replies!

@pkoury: I know of no place around me like that. And even then, I'd be a little hesitant about plunking down 112 A123 cells in front of someone who has not had specific experience working with these cells. I'll dig around town here for a place, but they'd really have to impress me.

@Capt Lou: Actually, I already called them and they said the pack is larger than they handle. They do offer a discount when ordering that many cells, but it's the proper assembly that I need as well.

I guess I might have to trawl through the Endless Sphere forum to see what I can find on this (it's for an ebike BTW). Most people use Ping or Headway batteries, but I'd really like to have the reliability, durability, tolerance, and cycle life of A123s.

Or I might just look at those 20Ah prismatic A123 cells, would only need a 16s1p pack. Assembly should be easier, but still needs to be done right to avoid damage.

DustBen 12-09-2011 04:49 PM

RE: Large Custom A123 packs?
 
I'm looking for the opposite... small A123's.

2 cells and a total mAh rating around 500 for small models.

BarracudaHockey 12-09-2011 05:57 PM

RE: Large Custom A123 packs?
 
www.wrongwayrc.com

Tell him Andy sent ya


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