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Beginner Mech Advice

Proinsias

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Hey, just looking for some tips on mechs.

A little background:
Started vaping about 9 months ago and been using rta/rda's building my own, simple, coils since. First mod was a Smok M80 which died on me after about two weeks, I got a replacement which also died after a few months, no replacement given. Been using a Coolfire IV 40w exclusively for the past 5/6 months vaping mainly diy juice.

After the second Smok died I decided I wanted something simpler and modular. Got into a panic when I dropped my Coolfire in a sink of water, it came out still working after drying out but left me craving one of the simple tube mechs to have at least as a back up. After months of daily usage the Coolfire battery is not what it once was and replaceable batteries are looking attractive.

I've just ordered an Xtar VC4 charger, two Samsung 25R 18650's and a Caravela style tube mod. The plan was to get charger and batteries this month and a mod next month but in picking up a few bits and bobs from fasttech the caravela thing looked too cheap not to give a shot.

Main concern is building within safe limits. Ideally I would like to be using my Derringer and I usually build 24/26/28 gauge kanthal single strand coils around 0.5-1.5 ohms, single or dual coil. I've also got a Lemo Drop, Cthulhu & Velocity. Is there a rough guide as to what the safe ranges are for the this sort of setup? is this a viable setup?
 

Proinsias

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Cheers, I've had their coil wrapping page bookmarked and often dropped by, just spotted the battery drain tab. the battery presets is just what I was looking for.

Looks like my current habits of 0.5-1.5 ohm coils fall in the sweet spot.
 

DogMan

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25R are good down to around 0.2ohm. They are 20amp continuous rated and have a name for being modestly spec'ed

Steam engine site is good if you don't want to do the math yourself, you may find you want to build lower to compensate for not being able to raise the watts
 

OBDave

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25R are good down to around 0.2ohm. They are 20amp continuous rated and have a name for being modestly spec'ed

Steam engine site is good if you don't want to do the math yourself, you may find you want to build lower to compensate for not being able to raise the watts
This - keep it above 0.2 and you're good to go with those 25r's, and likewise you may want to consider a slightly lower build since you'll be relying only on the power your battery will put out, which will fade as it loses charge.

I like to recommend a multimeter for new mech users - check your battery every dozen vapes or so until it drops to 3.7 volts, then recharge. After a few days of practice, you'll know "by feel" when it's time to charge, and you won't have to worry as much about damaging your batteries by vaping them too low...
 

Proinsias

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Thanks, will sort out a multimeter and keep an eye on the batteries.
 

OBDave

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Not sure where you are (from your language I'm guessing "across the pond"), but if by chance you're US-based Harbor Freight Tools has a cheap multimeter that will perform this rather basic task for like $5...
 

Robert B

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Member For 4 Years
These in-line volt meters are handy for checking batt voltage. Unscrew atty, screw this on, hit fire button. Got this one from Lightning Vapes, and they work fine on a hybrid style mod too.

voltmeter.jpg
 

Proinsias

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I'm over the pond in Scotland.
Picked up a little multimeter, I think it's this one in a different color:
http://www.maplin.co.uk/p/maplin-general-purpose-analoguemultimeter-uz82d
OBDave said:
I like to recommend a multimeter for new mech users - check your battery every dozen vapes or so until it drops to 3.7 volts, then recharge. After a few days of practice, you'll know "by feel" when it's time to charge, and you won't have to worry as much about damaging your batteries by vaping them too low...
The 25R seems to be rated down to 2.5v by which point I imagine I'll have long stopped vaping, what are the repercussions of vaping <3.7v?
 

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