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  1. #1
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    Building battery pack: Passing wire through the case?

    I'm building a battery pack for a light using a Cage Rocket:

    Cage Rocket - Home Page


    How do others secure the cable passing through the wall while maintaining a level of water-proofness? Options I'm looking at are grommets and cable glands:

    Grommet (probably sealed with silicone)-


    Cable gland (bulky but waterproof)


    The diameter of the 2-lead wire I'm using is 5mm. I'm curious to know what others use.

    Thanks!
    Ventana El Rey
    Felt F35
    Schwinn High Plains

    Project - Surly Ogre

  2. #2
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    Glands are probalby a better choice.
    Silicone has a way of working loose sooner or later.
    Personally I use 2-part epoxy, but for a one off nice case I would probably break down and use a gland.

  3. #3
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    I'm having good luck with the cable gland route -- see this post.
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  4. #4
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    Quote Originally Posted by ecthelion View Post
    I'm having good luck with the cable gland route -- see this post.
    Thank you for your post and link! If you had to do it again, would you mount your gland in the same place? I definitely understand why you did it there; it's one of the few flat spots. Also did you have to order the gland or can they typically be found locally?

    Thanks!
    Ventana El Rey
    Felt F35
    Schwinn High Plains

    Project - Surly Ogre

  5. #5
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    If setting up another battery with a cage rocket case, I'd likely still mount to that flat on the top, but try hard to get a smaller gland. Mounting to other locations I just don't think the gland would get a good seal because of the curvature, or (bottom) the cable exit would interfere with the botle cage too much. As I have it set up, there is a bit of interference between the gland and the bike frame with certain bottle cages, so that's a bit frustrating. I have a bit of plastic tape on my frames to stop any incidental cable rub it causes.

    Honestly I think my next pack may be four 18650s soldered and Plasti-dipped, then velcro strapped onto the stem.


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    Quiring KVA MS2 Stainless 29er SS
    Tallboy Carbon
    Fisticuff
    ARR | GHORBA | IMBA NMBP

  6. #6
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    Also, FYI, I got the gland I used off Amazon. Could of easily used ebay, too, but Amazon Prime shipping is just too convenient.


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    Quiring KVA MS2 Stainless 29er SS
    Tallboy Carbon
    Fisticuff
    ARR | GHORBA | IMBA NMBP

  7. #7
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    Honestly I think my next pack may be four 18650s soldered and Plasti-dipped, then velcro strapped onto the stem.
    my stem is too short, my next battery pack will be in a semicircle `c` shape and velcro`d around the top tube
    ...Scun.thorpe, UK

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