The issue with the 4Nine is that it is a "hybrid top cap" mech mod. You need to make sure that the RDA/RTA/tank has a protruding 510 pin or you risk venting your battery.
Hybrid Top Cap Mech Mods & Battery Failure. Not the best mech mod for a beginner.
I have been using mostly regulated mods over the past couple years. Most of my mechanicals I have set aside.
With a mechanical mod the only way to "fine tune" your vape is to build a new coil or change the Ω of your factory coil. With a high vv/vw regulated mod (and its buck/boost circuitry) you can "fine tune" with a push of a button. On a mechanical mod your voltage drops as you vape, with a regulated mod this does not happen. Your first hit is just as good as your last hit.
A high vv/vw mod is a lot more versatile than a mechanical mod (not to mention safer, less upkeep, etc). The beauty of a high vv/vw mod is that you don't have to build low sub-ohm coils to get a great vape. In fact, building low sub-ohm works against you. Higher ohm coils use more wire which means more surface area to vaporize juice. This increases both heat and vapor production.
With a mechanical mod you increase the warmth of your coil by building lower ohm coils. However, the electronics in a regulated mod boosts the power coming from the battery so the ohms of the coil no longer control the warmth.
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I highly recommend you spend some time with
@Baditude &
@Mooch (two of our resident battery/safety experts) and visit their blogs. You are now 100% in control of your own safety (and others around you). Make sure you purchase an ohm reader and a voltmeter or DMM so you can measure your builds, check for shorts and measure the remaining charge on your batteries.
Here are links to some of Mooch's blogs:
And several links to
Baditude's Blog - Table of Contents: The blogs that address battery safety, Ohm's Law, CDR (continuous discharge rating/Amps) and how they all work together are detailed below:
BATTERIES
Battery Basics for Mods - The Ultimate Battery Guide
* Another essential read to understand which batteries are safe to use in mechanical and regulated mods. Includes a frequently updated list of recommended safe-chemistry, high-drain batteries with their specifications.
Purple Efest Batteries not as Advertised
* A cautionary blog that reveals that the purple Efest batteries may not have the specifications advertised. Also includes a commentary on "continuous discharge ratings" vs "pulse discharge ratings" of battery specs.
OHM'S LAW
Ohm's Law Explained for Vapers
* My attempt at explaining Ohm's Law in layman terms and how it relates to
vaping.
Explain it to the Dumb Noob: Ohm's Law Calculations
* As simple as it is to use, some people have a tough time grasping the concept. Warning: Includes graphic photos of mod explosions.
MECHANICAL MODS & REBUILDABLES
Information Resources for Your First RBA
* An essential read and reference guide for someone new to rebuilding coils. Includes a multitude of useful links on battery safety, mod safety, coil meters, coil building, and the differences in the three types of RBA's.
Inexpensive Mechanical Mod/RDA Setup
* A response to the frequently asked question on how to get into rebuildable atomizers with a mechanical mod inexpensively. Includes a list of commonly used tools and supplies for rebuilding and where to find them.
BATTERIES - WHERE TO BUY
Only buy batteries from a reputable supplier (not ebay or Amazon) as there are many counterfeit batteries being sold. Here are several reputable battery suppliers in the US.