Variable Volt Box Mods - Great Prices

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Silent Soldier

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ECF Veteran
Feb 27, 2011
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Saint Petersburg, Florida USA
Linear regulated:
2.5v - 8v range (approximate)
(Potentiometer can be mounted protruding from front upon request.)
$30

Switching regulated (Evercool):
3.3v – 6.1v range (approximate)
$55

Common features:
510 threaded
Housed in a sturdy A.B.S Resin 3x AA battery box
Internally mounted thumb wheel potentiometer for easy adjustment
Red fire LED
Switches rated at 5a
Input and output capacitors
Take 2x 14500 lithium-Ion batteries

All prices include shipping, US only. I will consider shipping outside the US but buyer must contact me first. Payments can be made to commo.guru@gmail.com Please include your ECF Screen Name in the notes when making a payment. Buyer pays paypal fee’s.

What’s the difference?
Technical answer:

Switching regulator - In a switching regulator transistors are turned completely ON or OFF like a switch. When they are on lots of current can flow but there is almost no voltage across the transistor therefore the transistor dissipates very little power. When the transistor is off there is usually a voltage across the transistor but there is no current so again there is very little power. Energy is usually stored and filtered through inductors and capacitors and regulation is controlled by varying the percentage of time on vs. off (duty cycle). The advantage to this is that there is very little heat or wasted power making this design capable of being very efficient.

Linear regulator - In a linear regulator the transistor is turned partly on so as to provide the proper resistance to the load so that the load always sees the same voltage. Since it is partly on there is a definite voltage drop across the regulating transistor and there is as much current simultaneously as the load is demanding. Therefore power is being dissipated across the transistor which turns into heat. This heat is wasted power and the reason that switching supplies are so much more efficient.

Simple answer:

Switching regulator:
More efficient (75-95% efficiency)
More time between recharges
Runs much cooler
More expensive

Linear regulator:
Less efficient (20-60% efficiency)
Less time between recharges
Runs much hotter
Less expensive

I offer the Linear regulated mod as an inexpensive option for people on a tight budget or those just wanting an inexpensive back-up VV mod, due to the heat generated by linear chips I do not recommend this for heavy daily use as the linear chips thermal protection can kick on with heavy use.

Photo’s
Linear VV.
SL380593.jpg

SL380596.jpg


Switching VV.
SL380594.jpg

SL380596.jpg


I also take requests for custom mods, though I cannot guarantee that want you want will be possible or within my abilities.
 

Silent Soldier

Super Member
ECF Veteran
Feb 27, 2011
394
49
45
Saint Petersburg, Florida USA
The round blue knob is the potentiometer, rotating it changes the voltage. in order to tell what voltage it's set at you'd either need a voltmeter or one of the LED voltage indicators. Both a pretty handy to have, if there's a harbor freight near you I think they have the small voltmeters for around $5.
 

kaykay

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Jun 14, 2011
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concrete jungle
The round blue knob is the potentiometer, rotating it changes the voltage. in order to tell what voltage it's set at you'd either need a voltmeter or one of the LED voltage indicators. Both a pretty handy to have, if there's a harbor freight near you I think they have the small voltmeters for around $5.
is there anyway u can add one for me for a lil extra?...this would be for next week btw.
 

ericdjobs

Senior Member
ECF Veteran
Jun 19, 2011
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Northern CA
I got an evercool VV box from this man, it's amazing. Very well put together, feels very sturdy, nothing is loose within the box at all. It's really my pride and joy :p Silent Soldier definitely knows what he is doing when it comes to mods.

and it would be my 100% all day vape if I could stop getting counterfeit 14500s.... only have 1 set and they are AW IMR 14500s... have purchased a total of 8 trustfire 14500s now, watch out guys :p They don't fit (or require an amazing amount of force) in these battery boxes.

I have my AW ICR 14500s on the way though :)
 
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