How much power can these things take?

[eskimoroll]

The Magnum runs on 6v, usb is 5v, and the screwdriver i believe runs on 7.2v. How far can we take it without melting everything or starting a fire?

 

[smog]

Hi eskimoroll
Nice mods you do Btw . the Screwdriver is 3.6V I believe (runs on one cr123a).
since doubling voltage will quadruple power madog's magnum is really about on the edge at 6V for a 901 atomizer .To much power if it doesn't melt the heater coil first by drying it out will just guzzle loadsa e-liquid or make a burnt flavour.
It may be a nice idea in one of those battery holder juicebox type mods with all that space you could easily fit some kinda simple power control circuit which can be adjusted manually to find the best power setting for an individual preference .

 

[eskimoroll]

Hi eskimoroll
Nice mods you do Btw . the Screwdriver is 3.6V I believe (runs on one cr123a).
since doubling voltage will quadruple power madog's magnum is really about on the edge at 6V for a 901 atomizer .To much power if it doesn't melt the heater coil first by drying it out will just guzzle loadsa e-liquid or make a burnt flavour.
It may be a nice idea in one of those battery holder juicebox type mods with all that space you could easily fit some kinda simple power control circuit which can be adjusted manually to find the best power setting for an individual preference .

Thanks for the correction on the screwdriver. Since the magnum ran on two cells I incorrectly thought that the screwdriver ran on two of those spiderfire cells. Hmm... I have a bunch of 3.6v AA and AAA sized batteries on order from dealextreme and i'm debating whether to put two of them in my juicebox mods. I'm not savvy enough with circuits to even begin to understand how a power control circuit would work but it does sound like a good idea. I guess I could always wimp out and run the batteries parallel but I'm really curious to see how a disposable atomizer/cartridge would run with 7.2v running through it!

 

[eskimoroll]

I went back and read as many battery threads as I could find and it looks like I'd need a regulator to keep from burning up my atomizer at those higher voltages. That's definitely a possibility down the line but for now, I'll just take those 3.6v batteries that I've ordered and go the opposite direction and make super compact and clean looking mods. That will be a challenge since I've loved all the space I got with the juicebox mods. Of course once my 3v CR2s arrive, I don't think I can help myself from making a 6v magnum just to experience what that's like!

 

[BarryK]

I had an idea to use a higher voltage and a current regulator, thought it may give a better discharge slope, i.e. to stop that harsh burn you get when the batteries are very fresh, I get this even with my 3 AA ni-mh setup.

What I found was that there is so much voltage drop across the regulator that you need to increase voltage by about x1.5 to compensate.

It worked just fine with a 9volt PP3 ni-mh, but the low current capacity (about 500ma/hr) made it impractical.

I've refined the 3AA battery pack a little, but future mods planned, which include a proper e-pipe and a 'stealth' e-cig, built into an inhaler case!, will all be using li-ion batteries.......