Whew!!
Using a Gillette Fusion?
Ralph can override the tech answers I'm about to give...
Effective voltage (to my mind) isn't the question... effective power (wattage) is...
Understand... I've had only a tiny amount of coffee as yet, but using a 1.5ohm carto on an MBM would have it run at 15.4 watts
MBM @ 4.8v: P = ( E / R ) * E = ( 4.8 / 1.5 ) * 4.8 = 3.2 * 4.8 = 15.36 Watts
(where P = power in watts, E = voltage, R = resistance in ohms)
EGO @ 3.7v: P = ( E / R ) * E = ( 3.7 / 1.5 ) * 3.7 = 2.4666 * 3.7 = 9.12642 Watts (some rounding)
(where P = power in watts, E = voltage, R = resistance in ohms)
When I used a tank on my MBM, what I found was not that I needed to pump it, but that I didn't hold the switch down as long. If I had to guess, I'd say for 2 seconds (?)... the response was VERY fast.
For comparison, on a 3.7 power source it'd be a bit longer... 3 or 4 secs. But then, even when I smoked I didn't inhale directly... I filled my mouth, then inhaled that. I vape the same way.
Now... as to using a tank on the MBM... the switch wasn't the problem, it was the lip of the MGM's lid that was the problem. To use the tank on an MBM, you need a 510-510 adapter to extend the connector enough that the bottom of the tank clears the lip.
Using the adapter would be needed even on the smaller tank... it's not the diameter that gets you... it's the lip on the MBM lid.
Anyway... I've used the tank on my MBM, ProVari, and regular/extended EGO batts. I liked it best on the MBM and ProVari (set to 4.2v).
(man... I hope this all made sense...)
Oh! The pre-drilled carto is the same resistance as the cartos I was bundling with the MBM... Ralph had already "approved" that resistance....
(all calcs based on perfect DC circuits... good thing, too, as I doubt I could calculate Thevenin equivalencies for AC anymore...)
Bed time for Cinderella, need up be up and moving early tomorrow.Very busy day, school, Dr. appt, pick up step son, then home and prepping a turkey for tomorrows b'day dinner for DH...Geez! I am exhausted just typing that![]()
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Bad kitty. Do not try to confuse me with watts. I barely understand volts.
I never do a direct inhale so that's not the problem. And I have 510-510 adapters.
When I use a stock 3.7 battery I get a nice amount of vapor.
When I use a Chuck and a 3.7 battery, I get a little more vapor and a lot more flavor. (And my stupid hand hurts -- I think I have pre-carpal syndrome.)
When I use my MBMs, I get the perfect amount of vapor and great flavor. (And my hand doesn't hurt unless I have been going steady with my computer mouse that day.)
When I use a Chuck and two 3.0 batteries (6.0V), I get a huge amount of vapor, the liquid tastes blech and I cough like I'm in the last act of Camille. (And I did not cough when I smoked.)
My hits (depressing the switch) probably run 5 seconds. I like that I doubt I can (or want to) change it.
Will I like the tank?
See. That wasn't so hard. What's the earliest you expect to have them in. (I'd prefer to place my pre-order over the weekend when my life calms down a bit but will go find my plastic now if I have to.)

Bed time for Cinderella, need up be up and moving early tomorrow.Very busy day, school, Dr. appt, pick up step son, then home and prepping a turkey for tomorrows b'day dinner for DH...Geez! I am exhausted just typing that![]()

). This page helped me get it, just by checking the table to see what would work well.For those asking about the ohms of atties/cartos vs voltage of the batts, etc., here's an excellent resource that helped me understand it better:
FAQ: What are these HV and LR attys? Do I need them? Are they safe to use? | Vaping Guides to the Electronic Cigarette
I had no knowledge of this stuff before this (or engineering, etc.). This page helped me get it, just by checking the table to see what would work well.
I hope it's helpful to others too!![]()
I think I've got it.
I am deliriously happy using a standard genuine Joye 510 atty which should be about 2.2 ohms on my 4.8V MBM. Therefore my ideal wattage is 10.5W (and the amps are also about 2.2.)
Using the same atomizer on my Chuck at 6V would give me 16.4 watts (at 2.7 amps). It makes me cough and choke.
If the tank with 4.8V would yield 15.36 watts, wouldn't that be too high for me?

I used the calculator the page Sonic linked to linked to: Ohm's and Joule's Law Calculator
So far, only 6.0V (with a regular, not low-res) atomizer makes me cough. I now reserve that voltage for dry burns and vape at 3.7V with my dear Chucks.
If it's the same as the clear DCC that came with my first MBM, then it's good.
