Kick safety

[ftlum]

Hi All.

I am going to get my first rba (fogger v4+) with a mechanical mod (EHPro EA) and was debating about getting a kick2.

I'll be using an Efest 18350 battery and have read as much as I could find on safety. When I rebuild the coils, I'll target the total resistance to be > 0.7ohm (this appears to be the lower limit for that battery). I'll probably aim for 1.5 ohms. I'm planning on using 28ga Kanthal (? with 3mm silica wick).

If I put in a Kick2, do the same (safety) resistance numbers apply when trying to make the coils? Can the Kick2 be safely increased all the way to its maximum wattage as long as I keep the resistance > 0.7 ohms? It looks like the Kick2 can fire down to 0.5 ohms, but that doesn't look like it's safe for an 18350-- it doesn't look like it's a install it and forget it' device.

BTW, please let me know if what I'm planning doesn't look right /safe.

thanks in advance,

Frank

 

[Larry777]

Hi Frank,
it looks like you should be in good shape, the numbers never really change regardless of the device and setup.
A kick2 should also run fine "wide open" without causing any overheating/overload.

I've also found most variable wattage devices get a little weird down near their bottom ranges so you may have to play a bit with your coil resistance to find "the real bottom".

Also, "safe" is determined by the batteries discharge rate, not size, not all batteries are created equal

Happy Vaping!

 

[Baditude]

Evolv LLC - Kick Instructions

If I'm not mistaken, the EHPro EA is a telescopic mod? If so, that's a good thing. The Kick takes up some room in the battery compartment, so figure on using the EHPro in the expanded 18490/18500 mode with the Kick 2 and an 18350 battery.

Be sure to use a high drain IMR battery. I recommend an AW 18350 IMR 700mAh.

You are only as safe as the weakest link in the chain. Do not go over the 6 amp limit of the 18350 battery when building your coils, and allow for some safety headroom. A 0.7 ohm coil will pull 6 amps from the battery. A 0.8 ohm coil will pull 5.2 amps from the battery; still not enough headroom IMHO. A 0.9 ohm coil will pull 4.666 amps from the battery, the lowest I would go with an 18350 battery.

A Kick will provide voltage regulation for your mechanical mod, so you won't experience the typical drop off in vaping experience that a mech mod has as the battery drains. It will also provide built-in short circuit protection like a VV/VW mod has, so you'll be vaping safer than with a mech mod alone. The Kick does not have reverse polarity protection, so don't accidentally put your battery in backwards, which will fry the Kick's circuit board.

 

[State O' Flux]

Hi Frank.

I can't tell the difference between 0.5Ω and 0.7Ω, so the importance you place on 0.2Ω is not particularly relatable... but thats my old, geezer class, taste buds.

What you propose is, by the numbers, spot on. People are (perhaps) a might concerned, because things like batteries, mechs, attys, coils and even Evolv Kick 2s... may not give a live up to advertised, measured or presumed numbers.

Your "stack-up of tolerance" leaves no room for life's inevitable variables, so show a bit of care... and don't be too surprised when the Kick "rattlesnake" raises it's annoying little head at around the 7-8 minutes of runtime mark. ;-)

 

[tj99959]

Why not just get some 18490s so that you have 16 amps to play with instead of just 6.

 

[zeroclue]

Why not just get some 18490s so that you have 16 amps to play with instead of just 6.

Agree, battery will last longer too! If you want the 18350 stay closer to 1ohm

 

[Alter]

I have Efest 18350 batteries and I find they heat up quite a bit using my mechs with a kick, unlike the 18500 or 18650 that stay cool. I'm using 1.5-1.8 ohm protank coils in most of my builds and always changing batteries. The batteries have a limited number of recharges you can do and IMO the 800mAh 18350 will require more charges thus its lifespan would be much shorter than the 1100mAh 18500 or a 2000mAh 18650. Spending the extra bucks to get larger more mAh battery would save more money in the long run when its time to replace your batteries.

 

[TheColdHandedVG]

Hi All.

I am going to get my first RBA (fogger v4+) with a mechanical mod (EHPro EA) and was debating about getting a kick2.

I'll be using an Efest 18350 battery and have read as much as I could find on safety. When I rebuild the coils, I'll target the total resistance to be > 0.7ohm (this appears to be the lower limit for that battery). I'll probably aim for 1.5 ohms. I'm planning on using 28ga Kanthal (? with 3mm silica wick).

If I put in a Kick2, do the same (safety) resistance numbers apply when trying to make the coils? Can the Kick2 be safely increased all the way to its maximum wattage as long as I keep the resistance > 0.7 ohms? It looks like the Kick2 can fire down to 0.5 ohms, but that doesn't look like it's safe for an 18350-- it doesn't look like it's a install it and forget it' device.

BTW, please let me know if what I'm planning doesn't look right /safe.

thanks in advance,

Frank

Are you talking about the 10.5 amp battery? If so, you can safely go down to around .4 ohms on that battery.

 

[TheColdHandedVG]

Am I missing something here? I see everyone saying that 18350 batteries aren't good for sub-ohming. I thought that what mattered was the Amp rating of the battery; am I wrong? I don't see how the size of the battery would affect anything. I thought if you are below the amp rating for your battery (especially taking voltage drop into account) you are good to go. I use 18350's on a .5ohm build no problem.

 

[ftlum]

Thanks, All. I ordered both the 18350 and 18490 to try out.

 

[Baditude]

Am I missing something here? I see everyone saying that 18350 batteries aren't good for sub-ohming. I thought that what mattered was the Amp rating of the battery; am I wrong? I don't see how the size of the battery would affect anything. I thought if you are below the amp rating for your battery (especially taking voltage drop into account) you are good to go. I use 18350's on a .5ohm build no problem.

Amp limit is indeed the most important battery spec for sub ohm. However, mAh rating (capacity) is next in line.

An AW 18350 battery has 6 amps and 700 mAh. Approximately 6 hours of use between charges if you're lucky. I personally wouldn't do sub ohm on this battery.

An AW 18490 battery has 16 amps and 1100 mAh. Approximately 10 hours of use between charges. Will handle higher range sub ohms nicely and last most of the day.