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Thread: a123 ebay seller

  1. #1
    hi all

    im looking into buying some a123 cells, from ebay x12

    found some on ebay.co.uk for £55 with shipping from hong kong

    http://cgi.ebay.co.uk/12-X-A123-2300-Li ... 7C294%3A50

    has anyone bought cells from this seller does the price seem good etc?

    also anyone that runs a123s what balancers do you use?

    thanks alex

  2. #2
    Yeah I bought recently from them. No problems at all and yes that is a bloody cheap price for them.

    Just be aware, the cells come from Dewalt packs so you have to remove some tags and they weren't all sitting at the same voltage.

    I currently don't bother balancing A123s. Haven't had a pack go out by much and if they do I find a real slow 10 hour charge sorts em out fine.

  3. #3
    thanks Gary

    so what tags did you use to construct your packs then?

    cheers

  4. #4

  5. #5
    You could go for the copper braid option however I decided to use the battery bars from technobots as I was ordering several other parts at the same time.

    I soldered my 8 cell pack together, put wiring on then covered all the cell ends with tape. I laid this onto a piece of foam which was then laid onto a plate of titanium longer than the pack. I heatshrunk some of the yellow 100mm stuff from technobots over the whole lot and attach using some holes in the titanium strip.

    If you want a really good guide for soldering these cells then take a look at Johns page (cheers John! saved me a lot of hastle!)

    http://www.terrorhurtz.com/a123/

  6. #6
    does anyone have the dimensions of a a123 cell?

  7. #7
    ignore post, was looking at wrong cells online.

    I will be able to tell you in a few hours when i get back to edinburgh

  8. #8
    See the spec sheet:
    http://a123systems.textdriven.com/produ ... L_2009.pdf

    Also the part number tells you - ANR26650M1 - 26 mm diameter, 65 mm long.

    With the paper tube on them they are around 26.7 mm diamter.

  9. #9

  10. #10

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