The Kick from Evolv--coming to Electronicstix!
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Jason's been letting me play with his kick beta unit for the last month or so... Before trying the kick, I was a constant battery flipper. A fresh charged 18650 & a 2 ohm carto is my sweet spot. I'm loving the convenience of just setting the kick at 8 watts & being able to stay at that sweet spot throughout the entire life of an 18500 battery, regardless whether I'm using LR or standard Atties/cartos. I'll be buying a couple of these units. They're absolute magic 
I am curious about battery life. I use 5 volt batteries right now and always finding myself putting them on the charger very quickly, as I they hit lower wattage too soon. Curious if the boost part of this will drain the battery just as fast, leveling the constant wattage advantage out.
If I stick to only 1 device, I can make it through almost an entire work day at 8watts using an IMR 18500 (at a job that allows me to vape continuously). If you're using a 3 ohm carto at 5v, you're probably cranking out just over 8 watts. 5v batts are awesome, but theyre only 600mAh. An 18500 is gonna generally range somewhere between 1200 & 1500 mAh. You'd definitely see an improvement in battery life as compared to your current configuration if you pick up the kick & a couple 18500's
I am using dual coil atomizers at 1.5 ohms. I use 5 volt Battista, but prefer them for the first hour or so when they are closer to 5.4 to 5.8. All I was saying is this should let you use the full cycle of the battery consistently. But how much duration does this have on the battery.
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I think most IMR 18490/500 are 1100 mah. There are many variables that go into the amps drain. Amps drain determines life per charge cycle. Kick boosts and that uses more amps. LR also demands more amps. Combo of boost and LR will draw the highest amps (lowest batt life/charge cycle). Amps drain is like your RPM/MPG in a car. Lower RPM for the engine (lower amps drain in vaping) is higher MPG (longer vape time). Higher RPM (higher amps drain in vaping) is lower MPG (shorter vaping time).
For example (unboosted numbers) - using your example of 1.5Ω at 5.4 volts demands 3.6 amps (assuming the batteries can push that level) and produces 19.4 watts (electrically speaking but not comparable to ANY single coil at 19 watts - not achievable on single coil as far as I know). However, if you put an under-load meter on that combo, I'm guessing you are getting much lower voltage because I doubt that battery can put out those 3.6 amps. The max amps push capacity of the battery will force voltage drop-off to the level where ohms law will balance with those Ωs and the available amps push from the battery. For example, if that battery can push 2.5 amps - you'd be actually vaping 3.75 volts under-load and achieving only 9.37 watts.
1.5Ω dual coil is actually two 3Ω coils wired in parallel forcing the low 1.5Ω reading. The power gets split between the coils and this vapes MUCH cooler than a single coil. Because the power is split between two higher Ωs coils (ON DCs) you get a much cooler vape than the watts numbers would seem to indicate.
Lets run the same example using 3Ω DC (same 19.4 watts) would demand 7.4 volts and use 2.5 amps - much lower amps = longer batt life.
Using single coil examples and 10 watts:
1.5Ω at 10 watts needs 3.8 volts and 2.5 amps
3Ω at 10 watts needs 5.4 volts and uses only 1.8 amps
The lower the amps demand = longer battery life per charge cycle.
Aggregate button time is a factor (you'd get more hours if pressing 4 minutes per hour as compared to 8 minutes per hour) as is the conductive efficiency of the various devices (lossy devices can lose power in their design). Tube style batteries are rarely accurate on their MAH ratings and various manufactures make the true mah even less reliable. So, as you can see, there is no accurate way to calculate average life per charge cycle as there are way too many variables.
I can tell you, after 4 months of using kicks, and I use 2.8Ω cartos at 8.5-9 watts, that I average about 6 hours per 1100 mah AW IMR 18490 battery charge cycle.
Several device manufacturers are looking into making longer tubes and/or extensions to permit the kick to be used with IMR 18650 batteries (most are 1600 mah). There are newer ones rated 2000 mah but I have to wonder how they are stuffing in an additional 400 mah in the same size battery. Perhaps they are lowering the "C" rating a bit. I just do not know and I am no EE.
I wish I could give you an accurate answer but there really ARE too many variables to even offer realistic averages.
Hope this helps - somehow. It sort of is what it is.
For example (unboosted numbers) - using your example of 1.5Ω at 5.4 volts demands 3.6 amps (assuming the batteries can push that level) and produces 19.4 watts (electrically speaking but not comparable to ANY single coil at 19 watts - not achievable on single coil as far as I know). However, if you put an under-load meter on that combo, I'm guessing you are getting much lower voltage because I doubt that battery can put out those 3.6 amps. The max amps push capacity of the battery will force voltage drop-off to the level where ohms law will balance with those Ωs and the available amps push from the battery. For example, if that battery can push 2.5 amps - you'd be actually vaping 3.75 volts under-load and achieving only 9.37 watts.
1.5Ω dual coil is actually two 3Ω coils wired in parallel forcing the low 1.5Ω reading. The power gets split between the coils and this vapes MUCH cooler than a single coil. Because the power is split between two higher Ωs coils (ON DCs) you get a much cooler vape than the watts numbers would seem to indicate.
Lets run the same example using 3Ω DC (same 19.4 watts) would demand 7.4 volts and use 2.5 amps - much lower amps = longer batt life.
Using single coil examples and 10 watts:
1.5Ω at 10 watts needs 3.8 volts and 2.5 amps
3Ω at 10 watts needs 5.4 volts and uses only 1.8 amps
The lower the amps demand = longer battery life per charge cycle.
Aggregate button time is a factor (you'd get more hours if pressing 4 minutes per hour as compared to 8 minutes per hour) as is the conductive efficiency of the various devices (lossy devices can lose power in their design). Tube style batteries are rarely accurate on their MAH ratings and various manufactures make the true mah even less reliable. So, as you can see, there is no accurate way to calculate average life per charge cycle as there are way too many variables.
I can tell you, after 4 months of using kicks, and I use 2.8Ω cartos at 8.5-9 watts, that I average about 6 hours per 1100 mah AW IMR 18490 battery charge cycle.
Several device manufacturers are looking into making longer tubes and/or extensions to permit the kick to be used with IMR 18650 batteries (most are 1600 mah). There are newer ones rated 2000 mah but I have to wonder how they are stuffing in an additional 400 mah in the same size battery. Perhaps they are lowering the "C" rating a bit. I just do not know and I am no EE.
I wish I could give you an accurate answer but there really ARE too many variables to even offer realistic averages.
Hope this helps - somehow. It sort of is what it is.
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thanks for the run down Nebula,
is it better to use IMR's? (say if you like to use LR 1.8 to 2.0 Ohms attys. )
With Kick, IMRs are REQUIRED - see here: Evolv Kick Instructions
When using LR unregulated, IMRs are always better as they have higher C ratings (can push higher amps) to better accommodate all atty/carto combos.
When using LR unregulated, IMRs are always better as they have higher C ratings (can push higher amps) to better accommodate all atty/carto combos.
Since this is variable wattage, should I move to 2.5 or higher dual coil atties then? I discovered the love for the added heat by forgetting which battery I had in and realized that I loved the heat and flavor of juice with a 1.5 dual coil attie over 5 volts.
2-3Ω will give you the greatest access to the overall range. But as you enjoy the warmer vape - and DCs (which run cooler - as above described), I'd suggest you get an under-load digital meter and put it between your device and DC atty to see what your current underlaod voltage is on your freshly charged batteries. Then you can use the same meter to set the kick. Or, you can use an Ohms Law on-line calculator and punch in (always ONLY put in two of the variables and the calculator will tell you the other two) the volts you are getting under-load (your current set-up) and the Ωs of your atty and the calculator will tell you the watts you are currently vaping. You can set the Kick to those watts and you should get a similar (or same) vape warmth. Here is an on-line calculator: Ohm's Law Calculator
If you saw the little black box with the red digital display i was using at the Atlanta meet (I got mine from Voltage Meter ) or I think madvapes has something similar. Nag Jason and see if he can carry them as they are great.
Yeah, I have one of those that connects between. It broke two weeks after and I have not gotten around to fixing it yet. I just usually can tell what I like, and what voltage I like. I can definitely tell when voltages switches. Gonna have to play with this.
I should have said single coil 2-3Ω gives best access to overall range. as you go up in Ω it demands higher volts. With Dcs that power is getting split between the two coils. If you go to 3Ω DCs, Kick will max out on volts. To get your same vape - you have to find out what you are actually vaping under-load and then set kick to match that. For DCs, better to stick with your 1.5 DC but if you go to single coil, then use the higher Ωs and you will use less amps = longer batt life per charge. Or, look at the coming longer devices/extensions and use 18650 - ask Jason.
I am embarking on a journey to show how bad I want to get Kicked! All Your Kicks are belong to us!
Hey is there anyway to get notification of when these come up on Electronicstix?
I will make you eat chili made from the meat of your own parents Scott Tenerman! (vague Southpark Reference)
Hey is there anyway to get notification of when these come up on Electronicstix?
I will make you eat chili made from the meat of your own parents Scott Tenerman! (vague Southpark Reference)
Looks like Monday or Tuesday. They will go Very fast. Most likely 30 min or less.
If you want to be notified when they are put on the site, go to the kick on the site and sign up for an in stock notification. The second they are in stock it will fire off an e mail and then you can come grab one
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