A little battery and mech help

[nordrith]

Good evening everyone!

So my first mech(nemesis clone) should arrive tomorrow and as excited as I am, I would like to make sure I have my math correct. I ordered two of the Sony 18650 30 amp batteries, but they will not be here until Monday.

My question is will it be safe to run the nemesis with my efest 18650 10 amp discharge batteries with a coil of 1.5 ohms? I used an ohms law calc to determine that I'd be around 2.47 amps, so I may just have first time jitters and decided I should ask for some more experienced help beforehand.

Everything seems alright on paper, but in practice is always another story heh. Thanks in advance!

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[deedupdex]

You will be fine

 

[Kr3wsk8er]

^ what he said.

 

[nordrith]

Thanks for the quick responses! I figured as much but I just wanted to make sure I wasn't missing anything.

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[cramptholomew]

You can technically run down to .45 ohms on that efest battery and still be under the 10amp limit. To play it safe, I'd stay above .6 - Just for some wiggle room. IF you're worried about taxing your battery, that is... 1.5 ohms is a little high on a mech, IMO, without a kick. I'd try a 1ohm coil and see how you like it.

 

[nordrith]

You can technically run down to .45 ohms on that efest battery and still be under the 10amp limit. To play it safe, I'd stay above .6 - Just for some wiggle room. IF you're worried about taxing your battery, that is... 1.5 ohms is a little high on a mech, IMO, without a kick. I'd try a 1ohm coil and see how you like it.

Thank you for the heads up! I really don't plan on going lower than .8 after I get decent batteries. I did figure that 1.5 would be a tad high so that was a concern. I'll play around with it and lower it a tad if 1.5 isn't cutting it for me.

 

[Ellzey]

As a new mech user i would deff try and hit the sweet spot .8 ohms. .... even to this day when i throw a setup together i hit .8 ohms! Its always been a great vape for me on any RDA

 

[Rev. Stabard]

You can technically run down to .45 ohms on that efest battery and still be under the 10amp limit. To play it safe, I'd stay above .6 - Just for some wiggle room. IF you're worried about taxing your battery, that is... 1.5 ohms is a little high on a mech, IMO, without a kick. I'd try a 1ohm coil and see how you like it.

Curious as to why you say 1.5 ohms is a little high on a mech.... New to this as well, all info is appreciated

 

[havinfun1]

You'll be fine with the efest 18650 10amp battery, just don't build your coil lower than .6 ohm. I'm using the same battery in my FT Nemisis with a .6 ohm dual coil build(1.2 ohm x 2 coils) wicked with cotton, best vape I've had yet. Ran a single coil @ 1.4 ohms before this but it took longer to heat up. Will be getting some Sony 30 amps soon but even then I probably won't go below .5 ohm.

 

[cramptholomew]

Curious as to why you say 1.5 ohms is a little high on a mech.... New to this as well, all info is appreciated

With an unregulated battery, the highest voltage you'll see is 4.2v. With a 1.5Ω coil on a fresh charge, the vape will be somewhat decent for a little while, until the battery starts to drain. Factor in a small amount of voltage drop, and the power behind it is even less. It's akin to running a low-res atty on a non-VV eGo. It vapes OK, but not anywhere near peak performance for a mech. With a mech, you're trying to take full advantage of the power you have available with the bigger batteries. Not necessarily for cloud chasing, per se, but for the longer battery life with high wattage you can get with a lower res coil. With an .8Ω coil on a mech, you'll be supplying a sustained nominal voltage of 3.7+v. If you add a kick device to your mech, it will regulate your wattage, thus negating the need for lower res coils. But for straight power from the battery, you need to use lower res coils to achieve the same results that a regulated PV supplies.

 

[Hazewitch]

Good evening everyone!

So my first mech(nemesis clone) should arrive tomorrow and as excited as I am, I would like to make sure I have my math correct. I ordered two of the Sony 18650 30 amp batteries, but they will not be here until Monday.

My question is will it be safe to run the nemesis with my efest 18650 10 amp discharge batteries with a coil of 1.5 ohms? I used an ohms law calc to determine that I'd be around 2.47 amps, so I may just have first time jitters and decided I should ask for some more experienced help beforehand.

Everything seems alright on paper, but in practice is always another story heh. Thanks in advance!

Sent from my LG-G2 using Tapatalk

I've had no issues with any builds thus far. I am not into Sub-Ω's as i am always building my coils to be about 2.0-2.5Ω's. However, the great thing about Mech's like the Nemesis is that they will fire up(in most cases) where even if your build has certain minor flaws. In contrast, my Vamo 3 and 5 seem to be quite picky in this regard. This is why I have switched to mech's. They never let you down.

Of course, the better I am getting at re-builds with cotton are allowing me to use all my mods, itaste,vame,etc...across the board. It's about consistency in your rebuilds.

have a great week

Xavier

 

[Plinkk]

I think a .8 coil is about the sweet spot imho anything above 1.1 takes to long to heat up.

 

[Asmo6]

Just a side note on the nemesis. It doesn't love button top 18350's. It will space the switch out, and the clones already have a little side to side play in the switch mechanism making the button cap likely to bind on the sharp edges of the switch as it meets the body. Flat top everything.

I've dehorned the inside of the mod, and the switch to reduce this crunch / catch. But it's basically there unless you run flat top 18350's / 18650's.

If you run the trim ring, you can wind it in further - but the adjustable post in the switch will be pretty far out, you'll see more voltage drop. And run the chance of the post falling out. (Threads are too loose)

This is pretty much the only downside to the nemesis mod. Everything else is pretty much just - awesome. It will literally do almost anything.

I'll echo the rest as well about the 1.5ohm. It's a little high. You can start there. But I think you'll find 1.2ohm better. (single coil) For duals, I like .8 so far. Even at that point you will only be around 5 amps at 4.2v which - you will not see at the atomizer. I've checked it. It's gonna drop some.

Just WATCH your builds at first. Double and triple check them.

Build - cinch down - check.

Wick - check.

Finish assembly. - Check.


Don't just fire stuff. A mech is not going to tell you - hey, you just built a direct short because that leg is touching the deck. Or when you pulled the wick through - by the way... you managed to tweak the coil into the air hole post. It is simply going to fire anyway and short.

Think of a mech like a homemade tube gun. You drop a bullet in the chamber. If you let the action go. It goes. That's it. Your brain is the safety. It's as safe as you are attentive.

 

[Rev. Stabard]

With an unregulated battery, the highest voltage you'll see is 4.2v. With a 1.5Ω coil on a fresh charge, the vape will be somewhat decent for a little while, until the battery starts to drain. Factor in a small amount of voltage drop, and the power behind it is even less. It's akin to running a low-res atty on a non-VV eGo. It vapes OK, but not anywhere near peak performance for a mech. With a mech, you're trying to take full advantage of the power you have available with the bigger batteries. Not necessarily for cloud chasing, per se, but for the longer battery life with high wattage you can get with a lower res coil. With an .8Ω coil on a mech, you'll be supplying a sustained nominal voltage of 3.7+v. If you add a kick device to your mech, it will regulate your wattage, thus negating the need for lower res coils. But for straight power from the battery, you need to use lower res coils to achieve the same results that a regulated PV supplies.

Thanks for responding. Just wanted to be sure it wasn't another safety issue I needed to be aware of. Currently I'm running a Protank 3 factory coil at about 2 ohms. Works just fine until my stuff comes in to build the RSST I have for it.

Thanks again.