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  1. BJ43

    Battery Internal Resistance Measurements

    Normal 4200 or higher single cell are normally over 120mm. Saddle packs are just two smaller packs wired together used for weight balancing on RC models.:) That shorty you linked is two 2100 mAh paralleled. The 6000 is two 3000 mAh paralleled My 4200 shorty is two 4200 mAh in series 7.4v...
  2. BJ43

    Battery Internal Resistance Measurements

    I want to compare the 6000 mAh with this. Turnigy nano-tech A-SPEC 4200mah 2S 65~130C Hardcase Shorty Lipo Pack (US Warehouse) This 4200 mAh broken down and paralleled should give me, 8400 mAh and same size factor.:)
  3. BJ43

    Battery Internal Resistance Measurements

    Hope they ship mine first...:D
  4. BJ43

    The "WeekEnder"

    Lol Tibs, it is temporary until I finish my plywood glassed box.;)
  5. BJ43

    The "WeekEnder"

    I got the 1600 mAh yesterday for the Groove boards. Cut it open to make it parallel. Separated the batteries and flipped one so both pos were together same with both neg. A bit of solder to the tabs and now have a 3200 mAh. Fits fine in the Groove.
  6. BJ43

    Just hemp

    I did not do the test, it was an aerodynamic engineer at a Pratt and Whitney lab. The pics I had got erased when my pic quota filled on ECF a couple years ago and I asked joker to erase my pics to make room for new. This was before I knew about photo bucket. The test were actually done thru a...
  7. BJ43

    Just hemp

    Yes, extension tubes help, the lab tests used extension tubes, extension cones in various shapes including a fan cone. None really showed much more than 2mm of horizontal air flow.
  8. BJ43

    Battery Internal Resistance Measurements

    Those shorties can be very expensive...:) Why not just 3 1400 mAh cells? Much cheaper. Or this converted to parallel. 3900 mAh http://www.hobbyking.com/hobbyking/store/__20822__Turnigy_1300mAh_3S_30C_Lipo_Pack_USA_Warehouse_.html
  9. BJ43

    Battery Internal Resistance Measurements

    On RCs I might charge (fast charge) 3 or 4 times in a weekend, then go a month or more without using the battery. With ecigs I basically recharge (slow charge) every night. Even so I have had some Zippy batts in th 20C rating last only a few months... Also have had to jump start a few after...
  10. BJ43

    Battery Internal Resistance Measurements

    Just from my RC experience (I am no expert on batteries or anything else for that matter) but, the higher the C rating the longer my run time on the same mAh rated battery and most seem to take many more charges before going bad. Why? IDK...:)
  11. BJ43

    The "WeekEnder"

    Yes always 3s or a 12v 5 amp source. You need 2 volts higher than the output...
  12. BJ43

    The "WeekEnder"

    Here is the battery I dock to the passthru after about an hour of intermittent use. Click on pic for video.
  13. BJ43

    The "WeekEnder"

    I only have one charger that has digital readout and I never really paid attention. All seem to have one cell that is always a little weaker and takes a little longer to charge, but not always the first cell. I will pay more attention in the future.:)
  14. BJ43

    The "WeekEnder"

    Playing with some of my old boxes today at over 15 watts...:) http://www.e-cigarette-forum.com/forum/battery-mods/259577-just-lm2596-users-104.html#post11788588
  15. BJ43

    Just For LM2596 Users

    For those who doubt the power of these boards. Here is one of my old builds I pulled out of a drawer. 1.7 ohm 28g vertical nano coil with hemp fiber on a Rocket. Powered by a 12v 5 amp source. Set at 6.2V showing 6.1V under load. So old and so much use the black paint has worn off the meter.:)...
  16. BJ43

    Flat Wrap/Zig Zag Heating Element

    Give away Marlboro lighter I modded into an emergency dripper a long time ago..:)
  17. BJ43

    The "WeekEnder"

    I had a few old modems I removed the light pipes from, they work great. My DNA 12 weekender has one. :)
  18. BJ43

    The "WeekEnder"

    Great, I am making a box from thin RC plywood which I will fiberglass with thin glass cloth. I have a LM 2596 passthru I made a long time ago that has a lipo dock.:)
  19. BJ43

    Just hemp

    All the lab tests done several years ago showed that over 90% of the air goes directly up from the inside of the airhole to the mouthpiece. Test were done in a lab with clear caps and colored smoke drawn thru the side airhole. There is a large aerodynamic difference between blowing air thru a...
  20. BJ43

    The "WeekEnder"

    If I had a 3d printer I would make a drop in DNA 20 box around this battery.;) Turnigy nano-tech 5000mah 1S2P 50~100C Hardcase Lipo Pack (ROAR APPROVED) (USA Warehouse)
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