20A VV Bottom Feeder Rises From The Ashes

[pdib]

Nuppin' . . . .. . .

 

[onjre]

Well, not finished yet, but functional.
I have been working 12 to 14 hours 7 days a week so it is hard to find time.
Still need to install mounting for the top (but it fits pretty tight like it is) and finish the outside.

Displaying the combined battery voltage:

Displaying the output voltage:

Where the bottle, potentiometers, display switch, and fuses ended up:
(BTW, the black just sanded right off the front of the display)

The guts inside the top:

If I do this one again I will use different potentiometers and in a different location.
When I started cutting for them I didn't pay attention to the room that was going to be taken up by the bottle and had to make due.

Very nice... I'm not making one of these for sure! All these boards and doohickeis and whatchajiggers scavenged from the scrap bin and soldered together... Mine would look like I dropped a box of wires down the stairs.

 

[Alexander Mundy]

Gave it a 1/2 power shake down and discovered (as I suspected) that the stock battery springs are junk and heated up. Took some brass feeler gauge and made some spring current bypasses ala pdib style before the Grand fuse mod. No worries about needing spring collapse protection since I have 2 parallel 9A PTC fuses for input protection and the board has built in output protection.

Used this setup for testing which is a Stratus Dripper I modded for bottom feeding with a Rene41 nano coil shooting through a micro magic coil which has a combined resistance of 0.5 ohms.

No problems and voltage was stable to the max of 5.5V I tested (around 11 amps) with 5 second tests.
Will have to build a lower ohm setup to give it a full 20A shake down.

Tested with bursts around 1 second each with it wicked and juiced just out of curiousity.



The whole intent of this mod was to explore very low ohm & low volt (around 1.2V) possibilities which requires high amperage, not to cloud chase. So in that direction I started modifying some parts, dug through lots of RC & electronic parts, and need to come up with a few more to make one of the low voltage concept atties I envision that will not have a coil or a wick in the traditional sense.

Sneak peak at the future of vaping , or just another failure in the works ?

 

[Alexander Mundy]

Finished testing and it is good to go at full potential.

Started a thread for the atty experiments

http://www.e-cigarette-forum.com/fo...ents-extemly-low-resistance.html#post12390100

 

[Alexander Mundy]

Well, now that I have run several cycles with the batteries I can say there is not any "lead battery" issues here.
Each time the voltages of the SX30's were exactly the same. (At least to 1/100th of a volt anyway)
I also tried battery "A" in spot "B" with the same results.
Seems I got lucky the batteries and connections are balanced, at least for now.