SXmini Q Class Powered by YiHi SX450 Chip Part 2

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HandsomeStan

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I'm not sure if YIHI doing a Altus version tank is a good idea or not. Sounds like most people who bought one aren't too happy with it.
The Altus is a great idea but flawed, ramp up time, bottom fill, no spare glass tube but it has potential! If anyone can nail the design Yihi can, I'm excited about this!
 

Hyperspace

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36mg e-liquid? Reminds me that I first started vaping at 36mg. I'm down to 3mg after 5+ years.

Yeah I've been using 36mg ever since I started vaping. I've been thinking I should cut down to 24mg next time I order juice because it sounds like the FDA would ban anything over 24mg, so I figured I might as well get use to it now.
 

Hyperspace

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The Altus is a great idea but flawed, ramp up time, bottom fill, no spare glass tube but it has potential! If anyone can nail the design Yihi can, I'm excited about this!

Yeap, bottom fill and long ramp up time was a deal killer for me. Hopefully YIHI can get it right.
 
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Slicnic33

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Spot on! on my subtank, 0.5ohm at 25 watts a battery would nearly last a day, Im at 2mg nic but get through 15ml, saying that I used to vape 10ml of 18mg a day in a kayfun lol I should really cut back a bit.
This Crown is silly though, 0.5 dual coil, 40 watts and already rinsed a fairly new samsung25r battery today and 3 tanks full!

How is this for interesting :thumb: not specifically Q class but related to it! Yihi just posted on facebook that the new SXPure wire setting relates to a new Yihi atomizer, yeah yeah old news I know but....

"Yes, we will release our own Atomizer. Revolutionary atomizer. No Coil,support Temperature control and variable voltage, one coil can use at least 3 months"

Sounds like they are doing their own version of the Altus, could be good, very good indeed!


Maybe it will be cheaper than the Altus as well.
 

Stinkytofus

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I wonder why some sub ohmers are only getting 3 to 5 hours then?
I pull like every few minutes and sometimes two pulls, one battery last me on average 24,000 joules, around 100 joules per hit, so thats 240 pulls about.. Yea i can use that much in a 3 hour time frame, if im busy maybe 5 hrs, i charge on average 2-4 batteries a day, when my battery goes on charger ? 3.60v on the dot
 
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Hyperspace

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I pull like every few minutes and sometimes two pulls, one battery last me on average 24,000 joules, around 100 joules per hit, so thats 240 pulls about.. Yea i can use that much in a 3 hour time frame, if im busy maybe 5 hrs, i charge on average 2-4 batteries a day, when my battery goes on charger ? 3.60v on the dot

That's about the same for me. I pull every few minutes and sometimes two pulls. Anymore than that I start to feel nicotine overdose coming on. lol
 

JohnD0406

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I wonder why some sub ohmers are only getting 3 to 5 hours then?

Spot on! on my subtank, 0.5ohm at 25 watts a battery would nearly last a day

The coil resistance is irrelevant to battery life on a regulated mod - only watts really matter. Coil resistance is everything on a mechanical mod however. YiHi's post about battery current draw is flawed for the same reason - it's irrelevant. Their math worked out because, well, it does work out, on paper - it just doesn't tell you what's going on at the battery end of the mod, only the atomizer end. You'll be drawing significantly more current from the battery than you are using at the atomizer, which is what all the fuss is about. Too many people who never studied ohms law before vaping don't understand that you will NEVER be providing 4.2V from the battery - under load.

Anyway.... (didn't there used to be a "beating a dead horse" graphic?). Not a lot to discuss about an unreleased product with minimal information released. Threads like this will become much more useful after the release, while we all discover features, quirks, bugs, and help other newcomers.

Most sub-ohmer's are running high wattage. If you run low wattage, your battery will last longer. It's that simple really. Now the electronics hobbyists among us know that there are other factors as you get into extremely low resistances (as used in TC/TL), where the circuit path (including the mod itself) has enough resistance to cause inefficiency and loss, but at 1/2 ohm, not so much. But, for the sake of keeping it simple...
 

Hyperspace

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The coil resistance is irrelevant to battery life on a regulated mod - only watts really matter.

Are you saying a person using a 0.5ohm coil at 30W is using the same power as a person using a 1.2ohm coil at 30W? That doesn't make sense to me. I thought the lower you go in ohms the more juice you're drawing from the battery.
 

drmarble

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Are you saying a person using a 0.5ohm coil at 30W is using the same power as a person using a 1.2ohm coil at 30W? That doesn't make sense to me. I thought the lower you go in ohms the more juice you're drawing from the battery.
Yes, they are both using 30W of power. The 0.5Ohm coil uses a lower voltage and higher amps. The regulation circuit uses the same amount of of power from the battery (30W) independent of the resistance.
Resistance is only important for unregulated mods. Regulation chips are good enough that 30 watts is 30 watts.
 

Hyperspace

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Yes, they are both using 30W of power. The 0.5Ohm coil uses a lower voltage and higher amps. The regulation circuit uses the same amount of of power from the battery (30W) independent of the resistance.
Resistance is only important for unregulated mods. Regulation chips are good enough that 30 watts is 30 watts.

Hmm... learn something new everyday. So what is the end result to the vaper between using 0.50ohm and 1.2ohm coil. Is the 0.50ohm coil producing more vapor and warmer vapor than a 1.2ohm coil?
 

HandsomeStan

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The coil resistance is irrelevant to battery life on a regulated mod - only watts really matter. Coil resistance is everything on a mechanical mod however. YiHi's post about battery current draw is flawed for the same reason - it's irrelevant. Their math worked out because, well, it does work out, on paper - it just doesn't tell you what's going on at the battery end of the mod, only the atomizer end. You'll be drawing significantly more current from the battery than you are using at the atomizer, which is what all the fuss is about. Too many people who never studied ohms law before vaping don't understand that you will NEVER be providing 4.2V from the battery - under load.

Anyway.... (didn't there used to be a "beating a dead horse" graphic?). Not a lot to discuss about an unreleased product with minimal information released. Threads like this will become much more useful after the release, while we all discover features, quirks, bugs, and help other newcomers.

Most sub-ohmer's are running high wattage. If you run low wattage, your battery will last longer. It's that simple really. Now the electronics hobbyists among us know that there are other factors as you get into extremely low resistances (as used in TC/TL), where the circuit path (including the mod itself) has enough resistance to cause inefficiency and loss, but at 1/2 ohm, not so much. But, for the sake of keeping it simple...

You quoted half of what I said, my point was lower ohm or dual coils generally need more Watts to power them. My example was that using the dual coil 0.5ohm on the crown I had to pump up the Watts compared to the single 0.5 ohm subtank and battery life dramatically reduced.

To add to that I just started a dual coil 0.25 on the crown, this coil doesn't come to life until 55-60 Watts and you can see the juice go down every toke. This will rinse my battery even quicker, so in response to " low ohm coils rinsing batteries" of course they do if your having to use higher Watts.

12 Watts on a 1.8 ohm nautilus coil would be great, on a 0.5 ohm subtank coil 12 Watts wouldn't even sizzle.
 
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JohnD0406

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Hmm... learn something new everyday. So what is the end result to the vaper between using 0.50ohm and 1.2ohm coil. Is the 0.50ohm coil producing more vapor and warmer vapor than a 1.2ohm coil?

This pretty much sums it up, but I'll reply more below...

12 Watts on a 1.8 ohm nautilus coil would be great, on a 0.5 ohm subtank coil 12 Watts wouldn't even sizzle.

It all depends on how the coil is built. To get lower ohms, did they use a dual coil (so each coil is 1 ohm), or thicker wire which takes more power to heat up? In general, lower ohm coils can handle more power, and also don't work as well at the lower end of the power scale, but resistance alone isn't enough to judge how a coil will perform.

I run my 0.5 ohm Subtank coil at 30W, which is the sweet spot for me. It's supposed to be able to handle double that power. Others have tried running it at 15W and have trouble with flooding, because it's not vaporizing enough liquid. There are SO many variables with every tank and coil.
 

GeorgeS

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    Battery life - while there are many that claim to get 1-2 days out of a single 18650, I have to wonder how much juice they are actually going through. My Vamo V10 (VV/VW) with dual 18350's (serial config) that sits in the throne room lasts a few WEEKS. Then again, I don't spend all day/night sitting on the throne. ;) Realistically, the V10 and Kanger STM mounted with 1.3ohm Ti build @ 4.5V will last longer than a set of 18350 batteries. :)

    I use ~4-8ml a day. My TC mods run @ 15-25W/J, 460F.

    My Sig Vmax mini (single 18350) might last 2-4hrs, a telescoping Sig Vmax (18650) might last nearly 2x that - 6-8hrs as does all my single 18650 TC mods. (if I start on a freshly charged and full tank in the AM when I get up @ 7-8am I'll likely be swapping batteries or mods long before dinner time.

    Here's where the dual 18650's really shine. An IPV4s or Boxer SX350 with LG HG2's can easily last from sun up to sun down and beyond (7am to 11pm) but may (or not!) have enough charge left over for a few draws/puffs/pulls the next morning. Here's where I'll pull the batteries and put them on the charger over night so they are fresh in the AM.

    While I enjoy the way the SXminiM, IPV4s and Boxer-350J fit in the hand a YiHi mod with dual 18650 and similar form factor as the IPV4s is a sure thing buy in my book. (unless of course they REALLY fubared the thing, which is rather doubtful considering it is YiHi.)

    I'm looking forward to further news of YiHi's latest chip and mod!
     

    Hyperspace

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    Battery life - while there are many that claim to get 1-2 days out of a single 18650, I have to wonder how much juice they are actually going through. My Vamo V10 (VV/VW) with dual 18350's (serial config) that sits in the throne room lasts a few WEEKS. Then again, I don't spend all day/night sitting on the throne. ;) Realistically, the V10 and Kanger STM mounted with 1.3ohm Ti build @ 4.5V will last longer than a set of 18350 batteries. :)

    I use ~4-8ml a day. My TC mods run @ 15-25W/J, 460F.

    My Sig Vmax mini (single 18350) might last 2-4hrs, a telescoping Sig Vmax (18650) might last nearly 2x that - 6-8hrs as does all my single 18650 TC mods. (if I start on a freshly charged and full tank in the AM when I get up @ 7-8am I'll likely be swapping batteries or mods long before dinner time.

    Here's where the dual 18650's really shine. An IPV4s or Boxer SX350 with LG HG2's can easily last from sun up to sun down and beyond (7am to 11pm) but may (or not!) have enough charge left over for a few draws/puffs/pulls the next morning. Here's where I'll pull the batteries and put them on the charger over night so they are fresh in the AM.

    While I enjoy the way the SXminiM, IPV4s and Boxer-350J fit in the hand a YiHi mod with dual 18650 and similar form factor as the IPV4s is a sure thing buy in my book. (unless of course they REALLY fubared the thing, which is rather doubtful considering it is YiHi.)

    I'm looking forward to further news of YiHi's latest chip and mod!

    I go through 5ml a day and get about a day and a half out of a 3000mAh battery.
     

    retird

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    A few questions about the Q asked of Yihi. Will post their reply should they be answered.

    Not if it's more info about the batteries. We already have 2 battery threads and I don't want this one to become a third.

    Without going into the questions asked of Yihi they are not about battery safety so valid info from Yihi is OK in this thread, right?
     
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