This shoud be a simple question or is it too old tech.

[edyle]

rolygate

Whether its a spring loaded base or sliding battery in electrical terms that still constitutes a switch. A spring in the base and a moving piece of metal is still a switch - it's just a switch with a weird basic format. Anything with a power source and a circuit could conversely be describes as a basic electrical device. I think if i had described what I was looking for as a basic electric device I that might have confused the issue.

Switch definition - a device for making and breaking the connection in an electrical circuit. Moving batteries, magnets and springs all count.

Plus most lithium batteries have protection circuitry built in - therefore making even the most simplistic mechanical mod quite an advanced electronic device as soon as the battery is inserted.

I totally see your point about an ego one not being a mech - neither is the Aspire CF battery either, But they could possibly suit my form factor requirement. Though I did look at the CF batteries and felt that they were too long. Whatever electronics is inside those things is either complicated or not very well packaged for space. My main requirement is a small package that is as seamless as possible, Hence asking for a tube style mod (as I will now refer to it as that leaves the ambiguity needed). A tube style mod has to be the shortest variant of the style of mod I want to own.

Taking some of what djsvapour has said - and applying my own logic to things. I think that I'm probably better off buying two cheap tube style mods to suit my different battery needs and making sure I have a decent atty. After all, when you take away the complicated VV/VW circuitry of the latest gadgets the the atty is the item doing most of the work. The rest is just a battery, a tube, a switch and some rudimentary turning and milling operations.

Thanks people for all your help. You've given me things to think about that I wouldn't have done if I hadn't posted the question.

Yes the atty is the item that really does the business.
Since you're an electrical engineer by trade, you might be interested in other power options:

 

[tj99959]

Thanks tj99959.

That is exactly the kind of thing I am after but...

A few questions.

The wall thickness of the tube looks rather chuncky - what is the actual OD of the device. I don't really want something 25mm/1" diameter.
It doesn't seem to come with different uoter tube to allow for a range of battery sizes.

Apart from that it's almost perfectly what I'm after.

Isn't it ironic that it cost's more than a lot of top end VV/VW kit.

If that was 22mm diameter with a range of tubes I would get it today.

Yes the SB is built like a tank, one of the reasons they last forever.
But there are tanks of the same diameter, extensions so that you can use a Kick if you wish, and other accessories.

 

[djsvapour]

Plus most lithium batteries have protection circuitry built in - therefore making even the most simplistic mechanical mod quite an advanced electronic device as soon as the battery is inserted.

Unless I am wrong, the Li-ion Batteries we use for vaping have no circuitry...

 

[DavidDaveDavo]

djsvapour

Ah - unprotected batteries. I did say in my intro thread to expect silly questions. lol. I am aware that I know very little in this field. The odd time I use li-ion batteries in my job they are for memory back up etc and would always be the protected kind. Mind you on a £100,000+ machine neither space or cost really comes into the decision when buying a battery

I like this forum - I'm actually learning stuff (though as I'm starting at the bottom that ain't exactly hard).

 

[djsvapour]

I like this forum - I'm actually learning stuff (though as I'm starting at the bottom that ain't exactly hard).

I'm enjoying your style, or as my dad used to say "the cut of your jib"...

There are vape meets in Stafford quite regularly. We should set up a Birmingham one.

There's a pub on Newhall Street (the Wellington) which was/is (?) vape friendly. We had an impromptu meet there last year after the BBC day when vapers all did some public awareness - like a peaceful demo.

 

[Baditude]

Plus most lithium batteries have protection circuitry built in - therefore making even the most simplistic mechanical mod quite an advanced electronic device as soon as the battery is inserted.

This is incorrect. There are different classes of Lithium batteries.

ICR (lithium cobalt or Li-Ion)) may or may not have protected circuitry built into the top of the battery. Unprotected ICR batteries have no place in vaping; using these in a mechanical mod would be akin to using a potential metal pipe bomb. These batteries can explode into flames when they short circuit. Protected ICR batteries were all we had to use just a couple of years ago. Since the introduction of IMR (Li-Mn) batteries, protected ICR batteries are no longer recommended for personal vaporizers.

IMR (Li-Mn or lithium manganese) and hybrid/IMR are what is recommended for all personal vaporizers today. They do not use protection circuits built in because they do not require them. They are a safer chemistry than ICR (which can be volatile and explosive in thermal runaway). They are also high drain (over 10 amps continuous discharge in an 18650), where an 18650 ICR battery will only be 3 - 4 amps continuous discharge.

Battery Basics for Mods: IMR or Protected ICR?

Deeper Understanding of Mod Batteries

 

[DavidDaveDavo]

Baditude,

Thank you for those links, they were well worth the read,