Thread: Pocket 4K - Make your own Dummy LP-E6 to D-Tap

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  1. #1 Pocket 4K - Make your own Dummy LP-E6 to D-Tap 
    Senior Member
    Join Date
    Apr 2012
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    Toronto, Canada
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    Hi there,

    Just received the Pocket 4K, and having trouble getting a 12V to D-Tap cable in time. Darn that proprietary connector (even though it is nice)

    QUESTION for anyone who's done wiring:


    I Have:

    1. Old LP-E6 Dummy to AC power cord
    2: Old D-Tap to the original BMC 12v cable


    Can you see any problems in just stripping the wires and connecting those two cables together to make a Dummy LP-E6 >> D-TAP (Then powered by Swit Battery). ? Or is it a colossally bad idea that would fry the camera?

    I put my life in your hands good sirs and madams
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  2. #2  
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    Jul 2013
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    Melbourne, Australia
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    I was running a lanpart LPE6 battery adapter via a 12v powerbank that had the option to switch to 7.4v. It didn't work when set to 7.4v, would just turn on then off. would work however at 12v. I assumed the Dummy was stepping it down. That setup was working well for a good week before my camera died yesterday mid shoot. Camera now doesnt recognise any battery in the compartment, it will only power on via the 12v lemo.

    I would suggest you buy the 12v lemo power accessories cable and splice that instead if you plan on using 12v supply.
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  3. #3  
    I'm in Toronto and I have the D-tap cable if you want to borrow it.
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  4. #4  
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    Apr 2012
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    Quote Originally Posted by ahall View Post
    I'm in Toronto and I have the D-tap cable if you want to borrow it.
    Thanks so much! Very neighbourly of you! It turns out I won't need it for another week or so, so I can wait until the one I order comes in.
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  5. #5  
    Junior Member
    Join Date
    Mar 2017
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    13
    My general battery solution has been this....

    https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

    ITs looks just like the classic Juicebox battery here but it costs $40 Less. and comes with many adapters.

    https://www.amazon.com/Juicebox-Batt...ce+box+battery

    I connected it with the P4k Dc cable pack.

    it seems to work pretty good I haven't used it till it died yet but Powered my p4k and my SmallHD DP4 together for about an hour and it dropped to around 66% doesn't seem bad considering the DP4 is a power hog in my opinion.

    The voltage meter works very well.


    I also came across this

    https://www.amazon.com/XTPower-MP-50...4257835&sr=8-7

    its seems to be the same thing but newer and 60% battery more life than the older ones above. but at $200 your already flirting with Vmount territory.
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  6. #6  
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    Aug 2012
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    734
    Running more than 8.4v through a dummy battery is probably a bad idea. In a pinch you could use the the A/C adapter cable and splice that to the d-tap. Assuming you never use the A/C cable, but you could always fix it later. Make sure the polarity is right, reversing positive and negative could also fry something.
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