iSeason Mechanical Mod -- Adam clone w/brass contacts

Status
Not open for further replies.

thecatanddog

Super Member
ECF Veteran
Verified Member
Dec 12, 2012
806
441
Earth
check my sig ;) i have nothing but non china mods with the exception of the iseason. The Mortar v4 and the EA are the most efficient followed closely by the Gus and Paps, the iseason is a little behind those it doesn't hit nearly as hard as my other devices but it's not bad at all, can test later but i know what the others test out at and i doubt the iseason is in the same tier. the mortar is #1 due to copper contacts. copper > brass > SS
 

StaircaseWit

Super Member
ECF Veteran
Verified Member
Jan 18, 2013
995
462
The Pit of Despair
Update to last night. Now I'm registering at 3.2 at the coils on a freshly charged battery . That's almost a voltage drop of 1.0 - which now has ruined my experience. Damn you people !!!!

It's just the spring. Go to a local hardware and see if they have a brass or copper spring (mine had both). If it's too small, stretch it with pliers. I immediately lost that drop with a brass spring. I don't use it now because of the 18490 mod, but it works fine.

I really hope rainbow heaven or whoever makes these updates it with a brass/copper spring because otherwise I freakin' love this mod and use it every day.
 

JuniorNA

Ultra Member
ECF Veteran
Feb 2, 2010
1,134
325
44
NJ
lol What'd you do differently?! You were getting amazing numbers!

Yea ill look for a spring at either lowes or a mom and pop store.

I honestly did nothing different. My leads touched the same place as yesterday and it was done on an AGA T yesterday and day before .

On both the 350/650 I lost 1.0v today and only like .2 yesterday. I measured again just now and it's still losing 1.0v again so this time it's gotta be right.

Either will get sprint or if I'm too lazy ill make a .06 ohm coil at 3v and vape at 15 watts.

That's prob a 2/3 wrap of 28 gauge
 

tc1

Ultra Member
ECF Veteran
Verified Member
Oct 26, 2011
2,218
1,494
Ohio
Interesting mod but it seems like the reviews are mixed over at OKCVapes. Don't understand how your load tests would have changed unless perhaps you need to clean your mod and battery contacts?

Theoretically, if you are receiving little to no voltage drop off with no load ... the voltage drop off under load should be caused by the battery or atomizer device ... not the actual mod itself.
 

StaircaseWit

Super Member
ECF Veteran
Verified Member
Jan 18, 2013
995
462
The Pit of Despair
Yea ill look for a spring at either lowes or a mom and pop store.

I honestly did nothing different. My leads touched the same place as yesterday and it was done on an AGA T yesterday and day before .

On both the 350/650 I lost 1.0v today and only like .2 yesterday. I measured again just now and it's still losing 1.0v again so this time it's gotta be right.

Either will get sprint or if I'm too lazy ill make a .06 ohm coil at 3v and vape at 15 watts.

That's prob a 2/3 wrap of 28 gauge

The AGA has a voltage drop in the range of 0.2-0.3V by itself (depending on battery and atomizer resistance, of course). That's why I was so curious about your numbers yesterday.



Interesting mod but it seems like the reviews are mixed over at OKCVapes. Don't understand how your load tests would have changed unless perhaps you need to clean your mod and battery contacts?


Pretty much everthing about it is great (machining, switch, materials) except the spring. The spring is easily replaceable -- it just threads into the brass tube at the bottom of the mod (see my pictures at the beginning of this thread). Someone on OKC complained about the switch coming loose, but if you tighten it once with a wrench it stays tight, no loctite needed.

I've tried brass and copper springs, and have a silver-plated copper spring on the way from Datalux (ECF member). The voltage drop is similar to any other non-luxury mech mod once the spring is switched out.


Theoretically, if you are receiving little to no voltage drop off with no load ... the voltage drop off under load should be caused by the battery or atomizer device ... not the actual mod itself.

It's actually caused by *everything* in the circuit. Anything that's not a perfect conductor has resistance of its own, and these resistances cause the voltage to drop from battery to atomizer coil. The battery itself also undergoes its own voltage drop when under load.

Read this for more detail: Voltage Drop - Not Where You Think | atmizoo vaping modware
 
Last edited:

Lhartman89

Ultra Member
ECF Veteran
Verified Member
May 9, 2012
1,251
1,068
Canal Winchester, Ohio
Read the link Staircase posted and use the equations I quoted to find out what your actually getting watts-wise.

A lower atomizer resistance translates into higher current = more power = more vapour. However, the higher the current, the higher the voltage drop on the internal battery resistance and mod resistance.

Remember that voltage drops at high currents cannot be completely eliminated. The presence of voltage drop only means that the efficiency is decreased. With lower resistance coils, the power on the atomizer increases, but a higher percentage of it is lost on the way.

Let’s get to an example:

[Joe]

Joe has an 18500 non-IMR battery. He vapes with an RBA that has a 1.2 Ohm coil. His battery is fully charged, so he decides to measure the voltage drop of his Roller.

Joe measures the battery voltage at open-circuit, and finds it to be 4.2 Volts.

Then, Joe measures the voltage across the atomizer terminals under load, and finds it to be 3.79 Volts. He assumes that his mod is giving him a voltage drop of 0.41 Volts and frowns unhappily. He is convinced that his mod is not giving him a good hit, although it vapes like a train.

[Jay]

Jay has a fresh 18500 IMR battery. He vapes with an RBA that has a 2.2 Ohm coil. His battery is fully charged, so he decides to measure the voltage drop of his Roller.

Jay measures the battery voltage at open-circuit, and finds it to be 4.2 Volts.

Then, Jay measures the voltage across the atomizer terminals under load, and finds it to be 4.02 Volts. He assumes that his Roller is giving him a voltage drop of 0.18 Volts and goes on to say how amazing it is and how great it vapes.

One minor detail I forgot to mention is that Joe sold his Roller to Jay because of the “voltage drop issue”, so it’s the *same* device.

On to the explanation:

The voltage across a resistance is given by the rather simplified formula V = I * R, where I is the current supplied by the battery and R the resistance we are examining.

The current I flowing through a mod is roughly equal to: I = Voc / ( Ra + Rm + Ri ), where Voc is the open circuit voltage of the battery, Rm is the equivalent mod resistance, Ri is the internal battery resistance and Ra is the atomizer resistance.

A typical value for Ri would be around 0.08 Ohms for a non-IMR battery that is in *OK* condition, while a newer, larger capacity, non stressed, high-drain battery might be better. Take this value with a grain of salt, since each battery is different.

Now, the mod’s equivalent resistance is again not a static quantity, since it depends on how tight the different components are screwed, how clean they are, and many other variable factors. A typical equivalent value would be around 0.05 Ohms, perhaps even less.

So, with the same mod (Rm = 0.05) in the same condition and configuration, Joe was vaping at a current of:

I_joe = 4.2 / (0.08 + 0.05 + 1.2) = 3.16 Amps,

which gives an atomizer voltage of

Va_joe = 3.16 * 1.2 = 3.79 Volts.

In the case of Jay, these values were:

I_jay = 4.2 / (0.05 + 0.05 + 2.2) = 1.83 Amps
Va_jay = 1.83 * 2.2 = 4.02 Volts

So – the voltage drop says nothing. In fact, Joe’s kit was putting out many more watts than Jay’s, because of the low atomizer resistance. Joe was vaping at:

P_joe = Va_joe * I_joe = 3.16 * 3.79 = 12 Watts

while Jay is vaping at:

P_jay = Va_jay * I_jay = 1.83 * 4.02 = 7.36 Watts

Bottom line:

If you want to vape with a low resistance coil, the best thing to do in order to maximize efficiency is to use a high-drain, high-energy battery (18500/18650 IMR).

If Joe had a good IMR battery, his current and voltage would be:

I_joe’ = 4.2 / (0.04 + 0.05 + 1.2) = 3.26 Amps,

which would give an atomizer voltage of

Va_joe’ = 3.16 * 1.2 = 3.91 Volts

and a power of

P_joe’ = 12.73 Watts,

which is much better than the 3.79 Volts and 12 Watts he got with the non-IMR battery.
 

Xylocaine

Super Member
ECF Veteran
Verified Member
Despite its problems I am going to buy another one especially if we can get a lock down on some easy to find/properly fitting springs. I'm just waiting for it to catch on for a slightly lower price. I have to say I found something interesting the new SVD mod is now being sold for 99$ with a free 'Natural'... that is 50$ worth of free product. Is the Natural that bad? I apologize for getting off-topic I just think its kind of funny that I was originally going to get the Natural before I read all the problems with batteries not fitting/contacts being coated/etc. As far as I can see as soon as Rainbow Heaven catches on to the spring problem the iSeason is going to explode. It would also be quite a profitable venture if we found the right spring and vendors were able to offer it as well (I'd buy another one right now if this were the case!)
 

StaircaseWit

Super Member
ECF Veteran
Verified Member
Jan 18, 2013
995
462
The Pit of Despair
I think the jury's still out on the SVD until more people have one, but the Natural is fine with a few modifications. The button contact and top contact are chrome-plated which should be sanded for best contact.

Otherwise that's a good deal.

Spring should be here in a few days and I'll thoroughly test it.
 

Telescope Neil

Senior Member
ECF Veteran
Jan 25, 2013
157
60
35
Quezon City, Philippines
Since this thread is talking about voltage drops, i have a question. Why is everyone here relying on brass on their +/- pins? how about silver? since they are considered to be the most conductive metal(i think), they have been used WIDELY here in the Philippines, and I have seen outstanding results. People go crazy about making their own pins with silver, but there are good people here who can do it for you at a very cheap price. Copper is also very great, and it is what i have. I paid 8$ to have my +/- pins to copper with my very cheap SS china mod, and it hits like a 100$+ high end mod, maybe even better? I don't really have one to compare, but I really do think the performance is on par.
 

StaircaseWit

Super Member
ECF Veteran
Verified Member
Jan 18, 2013
995
462
The Pit of Despair
Silver isn't as readily available, and people don't seem as willing to mod their mods. Copper oxidizes quite easily and requires cleaning regularly, so silver is a better choice. Brass is what many mods (even some luxury mods) ship with, so it's what we tend to use.

The spring I have on the way is silver-plated copper, so that should be a good conductor.

I'd love to modify it with all-silver contacts, but I don't really know where/how I would go about that.
 

Xylocaine

Super Member
ECF Veteran
Verified Member
I just had my Bolt and Washer Mod for the iSeason show up today (Thank You to the Person who shall remain Anonymous). REGISTERING AN AMAZING 0.21V DROP UNDER LOAD! 4.14v charge on the Battery 3.93v Under Load. This is also not a very great battery this is an EH 18650 IMR LiMn I got from Madvapes a few months ago and is still one of my most used batteries (though that will change now that I have my iSeason running. I'm completely blown away - my original tests showed a 0.7-0.9v drop.
 

chadster214

Super Member
ECF Veteran
Verified Member
Sep 9, 2011
371
168
Left Coast!
Can you please post some pictures?

I just had my Bolt and Washer Mod for the iSeason show up today (Thank You to the Person who shall remain Anonymous). REGISTERING AN AMAZING 0.21V DROP UNDER LOAD! 4.14v charge on the Battery 3.93v Under Load. This is also not a very great battery this is an EH 18650 IMR LiMn I got from Madvapes a few months ago and is still one of my most used batteries (though that will change now that I have my iSeason running. I'm completely blown away - my original tests showed a 0.7-0.9v drop.
 

tc1

Ultra Member
ECF Veteran
Verified Member
Oct 26, 2011
2,218
1,494
Ohio
Status
Not open for further replies.

Users who are viewing this thread