I took the plunge and bought one of these things as my first mech after thorough research - omg, I love it. I love it so much, I had it acid etched.
I've got a 6 wrap dual clapton (26/32 kanthal) in there at the moment which comes out at .48 Ohms. So with 8.4V, that will pull 17.5A from my 25r batteries, so well within safety limits, if my research is correct. It's a hot vape though, but I like that.
I do have a question though; one that I've not been able to find a definitive answer to.
Obviously with no battery level readout, when is the best time to put fresh batteries in? I know it's a bad idea to completely discharge 18650s (that's why regulated mods won't fire below an certain level) and so far, I've been erring on the side of caution and swapping them out after about 4 or 5 hours, to be safe.
That chemical etch is beautiful.
I stick to 3.3V as the low limit for running a battery down on a mech (6.6V on a dual series). Unless you're testing the mod (like with a Tab 521) you have to go by the change in the vape strength/heat. This is not so tricky or subtle in practice though. I find with single or dual parallel mechs that when I feel the performance sagging and want to refresh the battery, the battery I pull out is hardly ever lower than 3.6V, as read by my charger. If your charger doesn't read voltages, try a voltmeter until you get a feel for it. With a little practice you will get it down, I assure you.
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