would one of these fit in a 3aa battery box with two 14500's
New 100V 240V to DC 12V5A Switch Power Supply Adapter Converter Female Connector | eBay
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This is cool, filled with potting epoxy. I did that on one of mine and loved it until the switch went and what a PITA.
These big gun regs look cool (especially the one with the watt meter) but just thinking about ohms law and wondering...with the increased size (and cost) of these regs, wouldn't a reasonable alternative be to stick with usual reg but run an 11V Lipoly and just run your voltage up instead of the current?...size of the batt would off-set the size of a 5A+ reg, the size of the conductors going to our atty cons are smaller and would be considerably safer...I mean, I'm just as guilty, I love the 28, it's great for re-wicking, lasts forever...but we're approaching the current draw of a small kitchen appliance...that we put in our mouth...just thinking
The 1.8 ohm 28g is a massive coil and needs a lot of current to bring the wire temp up for good vaper.Are you 'hitting the wall' with the LM2596s and 28g wire, BJ? Or are you just looking for a more 'robust' system? You are already using 12V/5A power supply aren't you?
The 1.8 ohm 28g is a massive coil and needs a lot of current to bring the wire temp up for good vaper.
So how many wraps of 28G would I need around a 2mm wick to keep the coil above 2ohms? Worse question, how many amps would this require? Something tells me I had better try some 30G instead.![]()
When you go to 28g the wire temp per mm of wire is very important and in a 12 wrap you will need more amps to get the wire temp up to the ideal temp for the juice used.I read that 6 coils is about 1 ohm so around 12 coils to get around 2 ohms. 2 ohms is 2 ohms no matter the thickness of the wire it is going to use the same amount of amps. OHMS LAW says 2 ohms at 5 volts would be 2.5 amps.
from my subjective experience, I get more vapor, more consistent taste from the 28g coil at the same wattage but lower wire temperature. I can even say that at 14 watts (I am using a Provari so I am limited) that the 28g coil producing .15 watts per mm is more robust than 8.5 watts on a 32g coil at .20 watts per mm and the .25 watt per mm at a total of 10 watts.
Looking at the amp limits on the lm2596 boards i see 2 amp limits, if i am looking to pull more in the 3 amp range, will i need a heat sink for these boards?