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Thread: 2S Box Mod

  1. #1
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    2S Box Mod

    2S Box mod

    Have been working on this, casually, for several months now.

    Dicast box from Jaycar.
    3400mAh batteries from SuperSports600 via eBay
    Clear heatshrink for batteries from eBay
    Polyfuse from Element-14
    16mm switch from Element-14
    Centre-off slide switch from eBay
    Voltmeter display and Turnigy 2S/3S balance charger from Hobbyking
    Mini Din plug & socket for balance charger from Jaycar
    510 connector from Fat Daddy
    XL4015 based 5Amp buck converter from eBay:
    I had to move the inductor from vertical to horizontal to save room
    I have changed one resistor on the board to limit the voltage adjustment range
    Custom Mosfet switch on veroboard. Has a TL431 to sense battery voltage and prevent firing if battery voltage too low
    Because the Mosfet switches battery negative, battery negative floats from the case, and the voltmeter switch must be 2 pole and switch positive & negative
    The only part that is glued in is the voltmeter
    Attached Images Attached Images
    D1git, gtadmin, mathsguy and 6 others like this.

  2. #2
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    D1git, Olfella, DEATHGUYJ and 1 others like this.

  3. #3
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    Nice work commanda. Sure is a lot happening in there.

    Looks to me you know your way around a soldering iron. I have little understanding of the more complex areas of wiring.
    Admire those who do though.






    I have no special talent____I am just passionately curious!
    I'm not MAD_____ I am GIFTED....

  4. #4
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    This is awesome! Does the talent here have no bounds?

  5. #5
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    Big props on this build mate.
    5 stars on doing the homework to make a well thought out and pretty much safe mod.
    Congrats, great effort
    Fatman and Olfella like this.
    Quit date : 10/5/2011

  6. #6
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    was wondering "why the buck converter" then it dawned on me.
    So used to Mechs I forgot
    Last edited by D1git; 21-10-14 at 07:17 PM.
    Quit date : 10/5/2011

  7. #7
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    OK I have to ask the dumb question, what does a buck converter do and why do I need one?






    I have no special talent____I am just passionately curious!
    I'm not MAD_____ I am GIFTED....

  8. #8
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    Good job looks good love the LCD in the lid brt the batteries last you a long time with that setup the box will polish up really well to with a bit of elbow grease

  9. #9
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    Great bit O kit
    Industrial Vaping with class insides !
    Top Stuff
    Olfella likes this.
    EPM V2-18490 (X2 ),GP Spheroid V2.5 and GP Piccolo V2.5 ,BBCB, Provari mini's, REO mini V2.1, 18490 REO , Jazz Carto Pipes ( fitted with GA tank and churchwarden stem Totally Evil!!! ), Meerschaum pipe ,e-holly35W,Phideas, AIOS,Taifun atties, PC Pipe mods.PC Squonker, Svapiamo squonker, GP Paps Heron combo.

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  10. #10
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    Quote Originally Posted by Tigmann View Post
    OK I have to ask the dumb question, what does a buck converter do and why do I need one?
    A buck converter converts a higher voltage to a lower voltage. It gives a regulated constant voltage output. VV.
    A straight buck converter is more efficient (typically better than 90%) than a boost first then buck (typically 60 something %) like you find in most currently available box mods; eg: Mvp, iStick, etc.
    And with the Turnigy balance charger, I don't have to have the lid held on with magnets so I can rip the batteries out to charge them.

    I've just hit the low voltage cutout, (slightly early at 7.3 volts, will have to tweak that) after 3 days with my Silo tank at 12 watts.
    Olfella likes this.

 

 
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