Here is my suggestion
On a 1.8 Ohm LR you are very safe up to 5V on Trustfire
On a 2.4Ohm you are fine up to 6V on Trustfire
Anything higher such as 2.8ohm and 3.0 etc you are fine taking up to 6.2-6.4V on Trustfire
If you Vape Dual Coil Cartos than:
1.5Ohm up to 4.0 is is safe on Trustfire
1.25 Ohm you shouldn't use on Trustfire
These are based on the following chart.
Ohm's and Joule's Law Calculator
The way that you figure out dual cartos is that you double the rating
for example 1.5 you plug in at 3.0. Than the results for Amps and watts you double again.
This technical Chart explains
Dual Coil Cartomizers
Note there are alot of variables, it's possible that the chip actually boosts the Voltage taken from the batteries so you could go higher
but I can't recommend it and didn't do it because I don't trust the protections in the Trustfire Battery to go off when you've exceeded the Amps and Bad things can happen.
But I believe you are 100% safe vaping at these voltages on the Trustfire.
Go beyond them at your own risk.
We received a shipment of IMR's today and the 14500's are perfect for our Smokbox mods! They measure 50.5mm so they fit better than the Trustfires. I'll have them on the site sometime tomorrow, 9/6.95% of my vaping is in the 2-2.5 amp range, but I'll be getting the IMR batts.
It'll be like my camaro, I mostly drive 55-60mph, but for those times I wanna go from 60 to 120 I can.
Now I gotta get me some emblems ready to put on this![]()
Been looking at this Mod Box for a while now, and finally ordered one that I am really enjoying, so here is my Review of the VariCool Box Mod.SmokBox VariCool! The efficient variable voltage mod.
New Stealth Model available!
Read the Vaping Guides Review !
Hand-built and tested to perfection! Run any atomizer/cartomizer with the perfect voltage to drive them! A 3a switching regulator provides true 3.3-6.5 volt output with no heat build up. Up to 95% efficient use of battery energy means longer life!
3xAA sized box uses two Li-Ion 14500 batteries which will supply 900mah of battery life for all day use for moderate vapers. Small compact size is easy to carry and use. Don't let the size fool you it packs a big punch at 4-6 volts!
Each box is handcrafted and fully tested.
Features:
- Reliable big button switch (5 amp)
- 3 amp switching regulator
- Red LED indicator light (future models will have choices available)
- Black 3xAA A.B.S resin battery box - dimensions: (2-3/4" x 1-7/8" x 5/8")
- Sealed and reinforced 510 connector
- Master On/Off safety switch
- Easy to adjust, concealed voltage trimmer, marked at 3.8 and 5v
What's the difference between a switching and linear voltage regulator?
Technical answer:
Switching regulator - In a switching regulator transistors are turned completely ON or OFF like a switch. When they are on lots of current can flow but there is almost no voltage across the transistor therefore the transistor dissipates very little power. When the transistor is off there is usually a voltage across the transistor but there is no current so again there is very little power. Energy is usually stored and filtered through inductors and capacitors and regulation is controlled by varying the percentage of time on vs. off (duty cycle). The advantage to this is that there is very little heat or wasted power making this design capable of being very efficient.
Linear regulator - In a linear regulator the transistor is turned partly on so as to provide the proper resistance to the load so that the load always sees the same voltage. Since it is partly on there is a definite voltage drop across the regulating transistor and there is as much current simultaneously as the load is demanding. Therefore power is being dissipated across the transistor which turns into heat. This heat is wasted power and the reason that switching supplies are so much more efficient.
Simple answer:
Switching regulator:More efficient (up to 95% efficiency)
More time between recharges
Runs much cooler
More expensive
Linear regulator:Less efficient (20-60% efficiency)
Less time between recharges
Runs much hotter
Less expensive
Try the E-Power Dual Coil Cartomizer (EPDCC) on the VariCool!
- 1.5 ohm, 5.5ml - Black or Stainless - w/rubber tip
This is designed for the E-Power 14650 and fits it like a glove! However, you can also use the EPDCC on other 510 devices like our SmokBox Mods with the addition of the eGo-510 connector.![]()
Been looking at this Mod Box for a while now, and finally ordered one that I am really enjoying, so here is my Review of the VariCool Box Mod.
Great Review, I really enjoyed it. Only one error and one possible error. The springs for the battery are long. An AW IMR fits perfectly, no need for magnets.
I don't believe that the 6 Amp shortens the battery life. I'll do a comparison of the two soon, Unfortunately when I did my review for the 3 Amp I switched between a Dual Coil Carto 1.5 and a 3.0 Ohm Single Coil...
Efest IMR 700 Verse AW IMR 600IMR 14500 button top 700mAh batteries are on the site now!
They are 50.5mm long, fit perfect and perform very well in all Smokbox APV's.
Efest IMR14500 700mAh 3.7V Rechargeable LiMn button top battery (2 pack)
I'll update the site to make these available as a "Make it a Kit" option soon.
-Rob
You can not go wrong with this Mod box vapes great, and the best battery's I found to use with mine are the AW 750 mah black protected ones they last most of the day for me.Great conversation and reviews on the Evercool VV here, it has convinced me to get one. I need a good VV for out and about, working outside, ect, ect.![]()
You can go wrong with this Mod box vapes great, and the best battery's I found to use with mine are the AW 750 mah black protected ones they last most of the day for me.
Got my Evercool yesterday and I'm really liking it. Perfect for taking outside and working around the house + running errands and shopping. Easily drops into the shirt pocket as it's pretty light. I think this box is worth every penny paid. My only concern is that the AW protected batts are a really snug fit lengthwise, but does work ok. Will have to replace with IMR's as needed.
Hi Smokie,I found that the AW 750 mah protected black bats last a lot longer then the AW IMR ones, just received some TrustFire flame 900 mah bats to try, and will see how they compare.
Hi Smokie,
I can't wait to hear your answer.
When I did a test of the batteries.
The Red AW IMR came in at 25 minutes of Vaping and the Trustfire Flame came in at 35 Minutes
I trust Aw IMR so I figure that they are rated correctly at 600mah. This ment that the trustfire is 10/25=.4 Greater
So (600mah *1.4)=840mah.
Based on my calculations the Trustfire Flame was a real 840mah and should outperform the AW Protected 750 by 10%
But in the real world there are many variables that could allow the AW 750 to outperform the Trustfire 900 (840Mah)
Below is my test
Trustfire Flame 14500 Vs AW IMR 14500 on the Smoktek Varicool VV Mod
The Equipment:
E-Cig - Smoktek Smokbox Varicool VV- Vendor Smoktek (Don't confuse with Smoketech)
Voltage Tester- Digital Voltage Tester sold by Smoktek
Cartomizers: One 510 Mega XL Dual Coil Clear Cartomizer Sold by Discount Vapers and One Generic 3 0hm Single Cartomizer (Old Laying around, can't remember the vendor)
Multimeter- Centech Digital Multimeter sold by Harbor Freight
Battery Charger- XTAR WP2 II LI-ION CHARGER Sold by SbFlashlights
The Batteries
14500 Trustfire Flame - Protected Li-Ion Battery -900mAh 50mm (2-pack) Sold by Smoktek $5.50 per battery or $11.00 a pair
AW IMR 14500 LiMN Rechargeable Lithium Battery 600mah - $7.50 per Battery or $15.00 per pair Sold by Lighthound (Known as a reliable source for AW Batteries)
The Test Method:
Batteries were Charged to capacity on the Xtar Charger. Voltage was set to 4.30 on the Smokbox Varicool Mod. This was verified by the Digital Led Testing adaptor from Smoktek. The Digital Led tester was attached to the varicool and the Cartomizers were attached to the Digital LED Tester. This was done to monitor voltage during testing and to protect unit from the sizzling hot cartomizers.
The Cartomizers were run for 1 minute and than alternated. The filler was kept constantly wet with DIY Organic 100% VG Juice. Toilet Paper was used to constantly blot the excess liquid sizzling out through the bottom of the Cartomizers. The Cartomizers were not inhaled during the process.
The test
Trustfire Flame 14500 both came off charger at 4.21Volts +- .01 Volt
AW IMR 14500 came off charger at 4.21Volts =- .01 Volt
Voltage was set to 4.30 on the Varicool.
Under Load on the 1.5 Dual Coil Cartomizer approximately 4.14V +-.01V
Under Load on the 3.0 Ohm Cartomizer 4.19+- .01Ohm
Note 4.3 Volts was chosen because the Varicool with the standard single coil tank or cartomizer runs it at .10 volt less which provides the 4.20 Sweet Spot that many Vapors prefer. It is a median sweet spot between the 3.7 and the 5.0 sweet spots. I would have liked to do the 5.0 but it's too hot to do a quick test and might have melted or fried the Cartomizers.
Vapeage
Trustfire 35 Minutes of Vape before Cutoff
AW IMR 25 Minutes of Vape before Cutoff
Note: I was monitoring the Voltage of the Cartomizers under load and their was no drop off of voltage. Both Trustfire and AW ran normally and than at the end cut out suddenly.
Voltage Testing at cutoff.
Trustfire Flame 14500
Battery 1- 3.18 Volts
Battery 2- 3.38 Volts
AW IMR 14500
Battery 1 - 3.06Volts
Battery 2 - 2.60 Volts
Conclusion About Performance of Batteries:
I paid much more for the AW IMR and was hoping that they were worth the price. I went into the test biased expecting that Trustfire was exaggerating their mah. They weren't, In the end the higher mah of the Trustfire Flame outperformed the AW IMR
Trust Fire was the clear winner. They cost around 25% less and provided 40% more battery life. In previous testing the Trustfire matched the AW IMR in all on a single coil clearomizer and up to extreme Vaping Levels on a Dual Coil 1.5OHm Cartridge.
According to the Lighthound sight the undervoltage level for the AW IMR is 2.5 Volts, the batteries were unable to function or the unit cut them off at 2.6. It's not clear why they cut off at a safe level because they don't have Protection. It is possible that once they didn't have enough left to provide correct Voltage that the Unit shut them down.
Conclusion about performance of Varicool:
AW IMR lasted 25 minutes which is = to 1500 seconds
Trustfire lasted 35 minutes which is = to 2100 seconds
If a person vaping is taking 10 second drags which is considered to be a long drag than they will have 150 drags with the AW and 210 Drags with the Trustfire. In my opinion it's best for batteries to be charged once a day (24 Hours) and the average person is awake 16 hours.
So with the Aw a person would have 9 drags per hour and with the Trustfire 13 Drags per hour. It appears that the Smoktek Varicool using Trustfire should last a heavy vaper for around 24 hours. It's very tough because everyone is different and follows a different pattern. I've found myself that I'm a very heavy vaper and at the end of 24 hours my Trustfires are testing in at 3.68 well above the cutoff point that I saw today. You can do the math and interpolate your vaping habits and Voltages.
For example if you are vaping at 5.0V than theoretically you would have 20% less vapes that is where the Trustfire would be the superior solution. and it goes the other way too if you are a 3.7v vapor, you'd get around 12% more vapes.
Disclaimer:
This test was done on a very specific E-Cigarette. It is quite possible that on a different e-cigarrete the results and performance would be different.
The test sampling is small. There is always the possibility that I received above average Trustfire and or below average AW. So this test is an indication only. I'm doing this testing as a Hobby/Project and can't devote the Resources to duplicating this test with a larger sampling.
The testing was done unbiased and impartially, you make your own conclusions.