Thinking of buying my first mech...

Status
Not open for further replies.

Halcyon2501

Senior Member
ECF Veteran
Jul 27, 2013
111
65
Greenville, SC USA
I'm looking at moving to a mechanical mod (most likely the hcigar Nemesis), and I wanted you guys to check my logic here:

I'm planning on using my KFL+s with it. My current favorite build in the KFL is a 1.3 Ohm 28ga. microcoil, which I run at 12 Watts. That's 3.95 Volts and 3.04 Amps. My EFest IMR 18350 flat top batteries have a limit of 6.4 Amps according to Taste Your Juice | BATTERY INFORMATION , so I should be OK there.

Now, the batteries are 3.7 Volt, so I should build my coils to around 1.1 Ohms to achieve a 12 Watt output, right? That'll jack up the Amps to 3.36, but that should be okay.

Do I need protected batteries, or will what I've got work?

Does this sound like a functional setup? Is there anything else I need to account for?
 
Last edited:

Baditude

ECF Guru
ECF Veteran
Apr 8, 2012
30,394
73,076
71
Ridgeway, Ohio
FYI, that list of Battery Amp Limits that is on PBusardo's battery page was created by myself. He double checked that the information was accurate and gave me credit, and posted a link to my ECF blogs. ;)

Your Efest 18350 IMR batteries will be fine as long as you stay above 1.0 ohms.

As long as you have an accurate ohm meter and don't build a coil which will pull more amps from the battery than its continuous discharge rating, you'll be fine.

I use the Ohm's Law Calculator. Always use 4.2 volts (fully charged battery voltage) for voltage and the measured resistance of the coils in the calculator. The "current" will be the amps drawn from the battery. Keep your coil resistance high enough that the amps are not equal to or more than the amp rating of the battery.

I'm currently running a 1.1 - 1.3 ohm microcoil on my KFL+ for both my mechanical and regulated mod.

Use only high drain IMR or IMR/hybrid batteries for both mechanical and regulated VV/VW mods.

Battery Basics for Mods: IMR or Protected ICR?

Information Resources for Your First RBA

http://www.e-cigarette-forum.com/forum/batteries-chargers/546143-batteries-chargers-multi-meters-forum.html

Ohm's Law for Dummies
 
Last edited:

edyle

ECF Guru
ECF Veteran
Verified Member
Oct 23, 2013
14,199
7,195
Port-of-Spain, Trinidad & Tobago
I'm looking at moving to a mechanical mod (most likely the HCigar Nemesis), and I wanted you guys to check my logic here:

I'm planning on using my KFL+s with it. My current favorite build in the KFL is a 1.3 Ohm 28ga. microcoil, which I run at 12 Watts. That's 3.95 Volts and 3.04 Amps. My EFest IMR 18350 flat top batteries have a limit of 6.4 Amps according to Taste Your Juice | BATTERY INFORMATION , so I should be OK there.

Now, the batteries are 3.7 Volt, so I should build my coils to around 1.1 Ohms to achieve a 12 Watt output, right? That'll jack up the Amps to 3.36, but that should be okay.

Do I need protected batteries, or will what I've got work?

Does this sound like a functional setup? Is there anything else I need to account for?

How about get the kick ring included with the nemy and use a kick and set the kick to 12 watts.

When the battery gets down to 3.4 volts, at 12 watts, the amp draw will be 12/3.4 = 3.5 amps
below that they kick will cutoff and time to recharge battery.
Charged battery, 4.2volt 12watts; amps = 12/4.2 = 2.9 amps
 

Halcyon2501

Senior Member
ECF Veteran
Jul 27, 2013
111
65
Greenville, SC USA
I'm using my SVD for an Ohm meter. I also have a spreadsheet that I *think* I found somewhere here on ECF that lets you punch in gauge/coil diameter/number of wraps/length of leads/etc. and it will calculate the resulting resistance. I use that spreadsheet for a guide when building my coils and then check them on the SVD, and they always seem to agree. And I also use Steam Engine | free vaping calculators and a couple other sites.

Using 4.2 for the Volts when calculating my coils, I should be building around 1.4 Ohms to get 12 Watts (with a 3 Amp draw).

Thanks for the input.
 

Halcyon2501

Senior Member
ECF Veteran
Jul 27, 2013
111
65
Greenville, SC USA
I was considering the Kick, and I still might go that route, but I'm shooting for as small a form factor as possible. I'm looking to get my vape down to pocket size, rather than swinging a lightsaber all the time. :)

That brings up another question - without a cutoff, like on a VW mod, how will I know to stop and recharge the battery? Just by when the power drops off and the vape becomes unsatisfactory?
 
Last edited:

edyle

ECF Guru
ECF Veteran
Verified Member
Oct 23, 2013
14,199
7,195
Port-of-Spain, Trinidad & Tobago
I was considering the Kick, and I still might go that route, but I'm shooting for as small a form factor as possible. I'm looking to get my vape down to pocket size, rather than swinging a lightsaber all the time. :)

a kick is only half inch.

18350 battery 35mm plus a kick 15mm = 50mm.
add top and bottom cap: should be about 3 inches; then the tank on top of that. another 3 inches.
Total about 6 inches.
 

pbusardo

Ultra Member
ECF Veteran
Jun 30, 2009
1,587
1,966
Cape Coral, FL
FYI, that list of Battery Amp Limits that is on PBusardo's battery page was created by myself. He double checked that the information was accurate and gave me credit, and posted a link to my ECF blogs. ;)

Your Efest 18350 IMR batteries will be fine as long as you stay above 1.0 ohms.

As long as you have an accurate ohm meter and don't build a coil which will pull more amps from the battery than its continuous discharge rating, you'll be fine.

I use the Ohm's Law Calculator. Always use 4.2 volts (fully charged battery voltage) for voltage and the measured resistance of the coils in the calculator. The "current" will be the amps drawn from the battery. Keep your coil resistance high enough that the amps are not equal to or more than the amp rating of the battery.

I'm currently running a 1.1 - 1.3 ohm microcoil on my KFL+ for both my mechanical and regulated mod.

Use only high drain IMR or IMR/hybrid batteries for both mechanical and regulated VV/VW mods.

Battery Basics for Mods: IMR or Protected ICR?

Information Resources for Your First RBA

http://www.e-cigarette-forum.com/fo...43-batteries-chargers-multi-meters-forum.html

Ohm's Law for Dummies

I agree! It's all Baditude's fault! :)
 
Status
Not open for further replies.

Users who are viewing this thread