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  1. Rocketman

    Hi Everyone

    Welcome Scott. Good move on Family Vape. It's really hard to stop smoking with a smoker near by. Not picking, but isn't the 0.02 ohms really 0.2 ohms? I recently kicked up my power level from about 8 watts from home made 3.7 volt 'mods' to 12 to 14 watts and .2 to .4 ohm mesh coils. I also...
  2. Rocketman

    Noob question about wiring a charging circuit...

    That would probably work (the price works :)). It is probably regulated at 8.4 volts, which is appropriate, but the CC/CV charging profile will probably not be optimum. Might be. As the combined 2 cell voltage approaches 8.4 volts the charging current will decrease. That's good. But it may...
  3. Rocketman

    What amp batteries?

    Did your link include the mod and cell resistance that Mike pointed out? How many sub ohm vapers get to vaper more than 50 to 60% of their battery capacity with the rest being wasted? How many with say 0.2 ohm coils have a total loop resistance 0.3 ohms or less? That's the 0.2 ohms for the coil...
  4. Rocketman

    Noob question about wiring a charging circuit...

    The 'typical' protection board is connect to the negative and positive poles of all the cells. It needs these connections to be able to sense cell voltage. Most put the Mosfet on/off switches at the negative pole, and give you a 'controlled' negative pole to use for both charging and...
  5. Rocketman

    What amp batteries?

    Would it be better to use a high current/low internal resistance cell with thicker internal foils to provide that high current/low resistance but with fewer mah than a cell that has thinner/longer foils but more mah? I wonder where the trade off between wasted energy and mah capacity is?
  6. Rocketman

    Parents dont let me vape, help.

    I'm not real sure I would be better off with my kids 'taking care' of me in my golden years. At least they wouldn't have to travel far, they'll be living upstairs also. At least you are supporting your habit with your own hard earned cash.
  7. Rocketman

    Parents dont let me vape, help.

    You came to a vaping forum to get support for vaping. Yup, good move. The problem is, we here don't see a problem with vaping. It's our god given right, guaranteed by the constitution to vape if we want. It's not near as risky as smoking, but much more risky than not doing either. If in fact...
  8. Rocketman

    Noob question about wiring a charging circuit...

    What you would be looking for is Chinese parts for e-cigs :) If you want to charge a 2 cell stack, similar to a 7.4 volt camera or cell phone pack look for 2S Li-ion protection circuit board - Yahoo Image Search Results They should be easy to get from battery suppliers like Batteryspace or...
  9. Rocketman

    Vamo Pcb for a pass-through

    That diode is spec'd for 1.04 volts drop at 10 amps. Drop at 3 amps would be closer to 0.7 volts. VF, max, TVJ=150°C 1.04 V @ IF 10 A
  10. Rocketman

    USB wall powered mod?

    I've used this one to vape on with a silicon diode to drop vaping voltage to about 4.3 under load (1.5 ohm dual coil). 5 Volt DC Plug Power Supply, 4A, Regulated | MPJA.COM
  11. Rocketman

    Basic circuitry questions.

    [/B] Yes, those are mine.
  12. Rocketman

    charging through the 510 connector?

    Got you beat. This was how I made it through one night at work about 3 years ago when all my 510 batts were down. The Macgyver mod with a genuine paper clip, duct tape, and a rubber band.
  13. Rocketman

    Noob question about wiring a charging circuit...

    Joe, most have a tap to 'monitor' voltage at each series junction. The control chip switches from tap to tap and when any one voltage level drops below or goes above a preset threshold it turns off the whole pack. Charging is still through the whole series stack with each cell monitored...
  14. Rocketman

    Noob question about wiring a charging circuit...

    I can't say "ALL" but laptop packs using the typical UNPROTECTED 18650 are organized as 3 in series with 2 parallel strings (6 cells) or 4 in series with 2 parallel strings (8 cells). Extended life packs are 3 in series, with 3 parallel strings (9 cells). It may not be straight forward how...
  15. Rocketman

    Noob question about wiring a charging circuit...

    Ever wonder how laptops charge series stacks of cells? Or how some of the camera or cellphone 7.4 volt packs are charged? A current limited (CC) regulated voltage (CV) supply and one of these PCB/PCM for 7.2V(7.4V) Lithium Battery Pack to protect from overvoltage, undervoltage, and overcurrent...
  16. Rocketman

    charging through the 510 connector?

    Sorry if I hurt any toes with my condescending remarks. I just figured that people (even EE's) forget about diode forward voltage drop. Visus, a 510 to eGo adapter will extend the charger connection enough, or you could put the adapter on the mod and make it 510 and eGo compatible...
  17. Rocketman

    MVP center pin...

    Seems to be a problem with many PVs. People have been "lifting the center pin" for years. maybe the carto/tank makers ought to get together with the PV makers and fix this. The eGo pics I posted are over 2 years old. Nothing new.
  18. Rocketman

    Diy ohm meter????? Parts list

    Don't forget to make a "Zero". An old carto connector "Shorted" would work.
  19. Rocketman

    charging through the 510 connector?

    A diode drops some voltage in the forward direction and blocks voltage in the reverse direction. The voltage drop is determined by the materials and fabrication method. Here is a good read on how a diode works Diode - Wikipedia, the free encyclopedia The eGo uses a Mosfet to allow charging...
  20. Rocketman

    510 Ohm Check Ohm-Meter Module

    Did you make a "ZERO" plug? Or a fake Carto "SHORT"
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