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  • The only case box for 2x18650, and output 7.4V, I've found...

    posted by admarc on 11/12/2012
    1

    Involvement:Expert (understands the inner workings) - Ownership:1 day to 1 week

    Pros:

    Simple construction, lightness, good plastics.
    Low price.

    Cons:

    The spring of negative pole is not strong enough to push the battery against the wall of the shell and achieve a balance contact of the positive pole.
    Electric cables are really thin. One of the welded joints between rivet and wire broke during assembling.

    OtherThoughts:

    The 18650 battery is closely fit.

    Bottomline:

    Needs a stronger spring, and would be better to have thicker wire (if possibly, with better welding..)

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