how low can i go on this?

[mexin69]

how low ohms can i go on this combo?

a nemesis mod and samsung 25 inr batteries

nemesis mod
$15.89 Nemesis Style Mechanical Mod - stainless steel / with telescopic 510 contact pin at FastTech - Worldwide Free Shipping

batteries
$10.15 Authentic Samsung INR18650-25R 3.6V 2500mAh Rechargeable Li-Ion Batteries (2-Pack) - 35A peak discharge / 22A continuous discharge at FastTech - Worldwide Free Shipping

dont really know what tank i will use, but maybe my subtank mini at first... so how low ohms can i go and still be safe?

 

[Susan~S]

The 25r's are a 20A CDR battery. I'll quote @tj99959 as this is the practice I follow with regards to headroom.

Everyone is free to set their own parameters, and I can only say what mine are.

I try to never exceed 50% of the CDR of a battery. So with your 20A batteries, that would be 10A.
This Ohm's Law Calculator tells me that a .4 ohm build is as low as I would want to use.

The reason that I place a 50% limit is because as a battery ages the mAh of the battery degrades, as the mAh degrades ... so does the batteries c rating. (amp limit) So down the road, your 20A battery may only be a 10A battery.

If you are new to mech mods and/or rebuildables I highly recommend you spend some time with @Baditude (one of our resident battery/safety experts) and visit his 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.

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: IMR or Protected ICR?
* 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 for Dummies (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.

* RTD Vapor
* Illumination Supply
* Lighthound
* Orbtronics

 

[DaveSignal]

I do .21 with 25R all the time with no issues. This is dual 6-wrap 24g around a 2mm screwdriver. Lately I have been building lower, but I mainly do that on mods that take more than one 18650. I would recommend getting a single-tube copper mech instead of a nemi clone. But it will work regardless.

 

[mexin69]

The 25r's are a 20A CDR battery. I'll quote @tj99959 as this is the practice I follow with regards to headroom.


If you are new to mech mods and/or rebuildables I highly recommend you spend some time with @Baditude (one of our resident battery/safety experts) and visit his 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.

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: IMR or Protected ICR?
* 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 for Dummies (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.

* RTD Vapor
* Illumination Supply
* Lighthound
* Orbtronics

thats really informative, thank you very much

I do .21 with 25R all the time with no issues. This is dual 6-wrap 24g around a 2mm screwdriver. Lately I have been building lower, but I mainly do that on mods that take more than one 18650. I would recommend getting a single-tube copper mech instead of a nemi clone. But it will work regardless.

wich mod do you reccomend?

 

[DaveSignal]

thats really informative, thank you very much



wich mod do you reccomend?

If you are looking for a good 18650 mech, these are a few that are better than a nemesis: oros, cartel, overdose, smpl, Xxix, Pegasus, Manhattan/fuhattan, paragon

 

[Wolfenstark]

I don't go lower than 0.3Ω Its a good balance of vape and safety for me.

 

[Bunnykiller]

be safe, keep the batteries happy..... .3 lowest

 

[mexin69]

wont go lower than 0.5, maybe .4... gonna try the 0.5 original coils in my subtank

If you are looking for a good 18650 mech, these are a few that are better than a nemesis: oros, cartel, overdose, smpl, Xxix, Pegasus, Manhattan/fuhattan, paragon

why are these better than the nemesis?

 

[DaveSignal]

why are these better than the nemesis?

There are lots of mechs better than a Nemesis, but I just named a few that came to my head. Nemesis is a stainless steel modular tube, meaning that you need to screw and unscrew multiple parts == more parts, more voltage drop, not as clean looking. Also the threading on many nemi clones that I have seen is garbage. There is no point to having a way for it to adapt to multiple different battery sizes if the goal is to build low and use the mod safely.

The mechs that I mentioned are single-tube copper mods with good switches. They offer better performance, are simpler designs, and they look cool.

 

[mexin69]

There are lots of mechs better than a Nemesis, but I just named a few that came to my head. Nemesis is a stainless steel modular tube, meaning that you need to screw and unscrew multiple parts == more parts, more voltage drop, not as clean looking. Also the threading on many nemi clones that I have seen is garbage. There is no point to having a way for it to adapt to multiple different battery sizes if the goal is to build low and use the mod safely.

The mechs that I mentioned are single-tube copper mods with good switches. They offer better performance, are simpler designs, and they look cool.

ahh okay, thanks for the info