Two questions, one on the istick and one on mechs

[Ligan]

Hi guys,

1) How come the istick can't sub ohm? Is that due to the fact that the heat comes from the resistance so you need higher watts / voltage to power a sub ohm coil?

2) What's the point of mechs compared to a VV/VW device, can you adjust the power at all? If not are you stuck at voltage of what ever size battery you have it in it? For example if an 1850 mah battery is in that'll provide x amount of volts / watts?

Thanks.

 

[Thespis]

1. That's the limit placed on the device by the firmware installed. It's probably a safety measure.
2. The voltage is fixed. The power is adjusted by the resistance of the coil. As the resistance is lowered, the wattage is increased.
This is the way I understand it. Someone please correct me if I'm wrong...

 

[Cullin Kin]

1) I have an iStick coming in the mail today. There's a couple of reasons that they place limits like those on VV/VW devices. First, it's possible both the battery and internals aren't capable of supporting high amperage. Second, it's just not what the device was meant for.

2) Thespis is right in that the voltage is constant on a mech. With a freshly charged battery you're at 4.2 volts. The only way to adjust the power is by building different resistance coils (or getting a kick which regulates). They are related by Ohms Law V=IR and P=(V^2)/R where V is volts (constant but the battery does drain), I is current in Amps, R is resistant in ohms, and P is power in Watts. When you set te watts on a regulated, it uses the resistance to gauge what voltage should be at. For example, I'm Vaping 30W on a 1.0 ohm coil: 30=(V^2)/1.0 --> V=(30)^(1/2)=5.4 V which is exactly what my Cana is set at. This is how I understand the VW side to work and I believe the VV side is just the opposite solving for P instead of V. For subohm vaping, I prefer mechs as they produce a much different vapor that regulated devices. It just feels more full, like a heartier vape. With mechs you have to be very careful though, there are a lot of safety procedures you must be aware of and battery knowledge and safety are a must. It's hard to explain the difference in vapor but the main difference between mechs and regulated is durability. Regulated is much better for the higher ohm vaping, like 1.0 and above. Sure there are these insane regulated mods that can pump out 250W but beauty is in the eye of the beholder. I prefer the subohm vape quality in a mech over a regulated.

 

[Susan~S]

Thespis has it correct. In addition:

With a mech mod the only way to "fine tune" your vape is to build a new coil. With a high vv/vw regulated mod (and its buck/boost circuitry) you can "fine tune" with a push of a button. On a mechanical mod your voltage drops as you vape, with a regulated mod this does not happen. Your first hit is just as good as your last hit.

 

[edyle]

Hi guys,

1) How come the istick can't sub ohm? Is that due to the fact that the heat comes from the resistance so you need higher watts / voltage to power a sub ohm coil?

2) What's the point of mechs compared to a VV/VW device, can you adjust the power at all? If not are you stuck at voltage of what ever size battery you have it in it? For example if an 1850 mah battery is in that'll provide x amount of volts / watts?

Thanks.

1) Few regulated mods can.
The istick is designed to be a good $buy$;

2) The point of a mech is it is a simple container for your battery; if something is not working you can usually figure out what is wrong and fix it yourself. With a vv/vw device, if it's not working you might have to toss it.

The voltage of the battery is about 3.7 volts nominal; you can get a dropin kickmodule to add regulation to a mech.

 

[Ligan]

1) I have an iStick coming in the mail today. There's a couple of reasons that theft place limits like those on VV/VW devices. First, it's possible both the battery and internals aren't capable of supporting high amperage. Second, it's just not what the device was meant for.

2) Thespis is right in that the voltage is constant on a mech. With a freshly charged battery you're at 4.2 volts. The only way to adjust the power is by building different resistance coils. They are related by Ohms Law V=IR and P=(V^2)/R where V is volts (constant but the battery does drain), I is current in Amps, R is resistant in ohms, and P is power in Watts. When you set te watts on a regulated, it uses the resistance to gauge what voltage should be at. For example, I'm Vaping 30W on a 1.0 ohm coil: 30=(V^2)/1.0 --> V=(30)^(1/2)=5.4 V which is exactly what my Cana is set at. This is how I understand the VW side to work and I believe the VV side is just the opposite solving for P instead of V. For subohm vaping, I prefer mechs as they produce a much different vapor that regulated devices. It just feels more full, like a heartier vape. With mechs you have to be very careful though, there are a lot of safety procedures you must be aware of and battery knowledge and safety are a must. It's hard to explain the difference in vapor but the main difference between mechs and regulated is durability. Regulated is much better for the higher ohm vaping, like 1.0 and above. Sure there are these insane regulated mods that can pump out 250W but beauty is in the eye of the beholder. I prefer the subohm vape quality in a mech over a regulated.

Okay cheers that's great I get it now! Sounds like regulated would definitely be the way to go, now I understand what a kick module does as well thanks.

I do honestly find it hard to see what people would go for a regulated mech over a variable voltage device such as the sigelei ones that can sub ohm though.

Last question : How can a regulated mech mod produce a different flavour / cloud than a variable voltage device, surely they work in the same way with the resistance heating the coil and vaporising the juice on the wicks, I don't get how the power changes the flavour / vapour between a regulated mech and a vv/vw device (providing both are at the same voltage/wattage)

 

[edyle]

Okay cheers that's great I get it now! Sounds like regulated would definitely be the way to go, now I understand what a kick module does as well thanks.

I do honestly find it hard to see what people would go for a regulated mech over a variable voltage device such as the sigelei ones that can sub ohm though.

Last question : How can a regulated mech mod produce a different flavour / cloud than a variable voltage device, surely they work in the same way with the resistance heating the coil and vaporising the juice on the wicks, I don't get how the power changes the flavour / vapour between a regulated mech and a vv/vw device (providing both are at the same voltage/wattage)

1: costwise, it's cheaper to get a mech.

2:

How can a regulated mech mod produce a different flavour / cloud than a variable voltage device,

It doesn't.