Vivi nova = half thermal

[Dusif]

Just got my newly ordered vivi nova (for a ry4 liquid), took my helio clone of the mech and smacked on the vivi... When i fired the vivi my battery went nuts and got super hot... I normally subohm so the mod had a sony us18650vtc3 in it running at a 4v charge... Tye vivi had a 2,5ohm coil in it... Now what i am thinking is this...

How the H***! Can this happen when a 0,5 ohm coil works as it should

Im confused

Edit
I have checked the battery and theres no dmg not even a charge level drop


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[generic mutant]

When you say 2.5 ohm, did you actually measure that?

Factory built coils (or indeed entire atomisers) can have dead shorts...

 

[Dusif]

When you say 2.5 ohm, did you actually measure that?

Factory built coils (or indeed entire atomisers) can have dead shorts...

I did measure that yes... Its a 2,5 ohm coil... Worked fine on the vamo


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[generic mutant]

Only thing I'd think is that the centre pins on the mods are different lengths, causing it to short on the mech

In Protanks, for example, if you push the positive contact hard enough it's possible to short it. Some of the badly made heads it's a lot easier than it should be...

I think Novas are built similarly (though I've never used one).

...

Of course, mods do develop internal shorts too. Could be the switch...

 

[Dusif]

Well im using the mod with the helio on it right now... Same battery and no problems at all... But im NOT putting the nova on here again... I think its going on a diffrent mod thats not made completely out of metal.. Just had a lightbulb moment... It was sitting flush on the mod, metal against metal... Moght that have something to do with it?


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[generic mutant]

Sorry, where I wrote Helio in the above post I actually meant mech.

Look at the schematic in the first post of this thread.

http://www.e-cigarette-forum.com/forum/clearomizers/404174-evod-protank-head-rebuild.html

The part shown in yellow is an electrical insulator 'grommet'. If you distort that too far (i.e. push the actual metal point of the positive pin on the head too hard, especially if the head is badly made), it can cause the positive leg to touch the base of the atomiser, giving you a dead short (when you hit the button).

I'm *guessing* the pin on your mech is longer than on the Vamo, pushing a badly made Vivi head's pin (I understand they're built fairly similarly) hard enough to cause the same thing.

 

[Dusif]

No need to look at the picture i see where your going here... That might have been what happened... The pin sit fairly high in this mech... In 18650 mode it gets pretty tight and something gotta give, in this case the pin... And since the nova was sitting flush when i tightened it that could absolutely be what happened... Imma try smacking it on the bolt later and see what happens... But im going to stay outside when i do it


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