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dwcraig1

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Posts posted by dwcraig1

  1. I have two DNA40 boards here installed and working perfectly that have the fire buttons snipped off by using flush cutting pliers. Both work perfectly. I just pulled one of the buttons that I had cut off out of my desk drawer and checked it electrically, the two legs  on each end of end of the switch are connected internally. When the button is pressed all legs are connected.
    Note that with the switch installed on the board the pads on the lower side (towards center) are battery voltage and when the button is pressed the two upper pads are supplied with battery voltage.
    So I checked one of the installed boards with the fire button cut off, only the one lower pad (the one on the "out" side of board) had battery voltage. The two upper pads both became "hot" when my external fire button was pressed.
    So I think it would work just fine but from what I see with this 40 it would be the two lower pads that might be better if bridged.

    Heck, on my other one I think I cut off all three buttons......Flask clone.


  2. I guess that you aren't wanting to put it back. You can just remove the cover, disc and rubber part. On the DNA40 I snipped the four "legs" with no added problems, I would think to 200 would be the same but it might be good to wait for more answers.

  3. I don't know what the hardware cell cut off on the DNA250 board is, I have asked but not got an answer yet. On the DNA200 board the hardware cut off is 2.85 volts, this is under load.
    The board is intended to be generally powered by a lipo pack so the cell cut off is higher than it would be for 18650's. I wouldn't be surprised if the hard cell cut off is the same on both boards. My estimate for your watt hours is 23 - 24. 
    For a DNA200 board powered by 18650's I use 2.9 volts soft cell cut off and 3.09 with lipo. 
    Running Battery Analyzer will give you the proper figures if you wish to do so. 

  4. To change profiles start with fire button "unlocked"
    Press and hold the + and - buttons at the same time to "lock power"
    With power locked press the + or the - two times quickly and the profiles will change by pressing the + or -
    Perhaps re lock power when done...by pressing and holding the + and- at the same time.

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