Help ! i need some help ... :(

[Smoking Panda]

elo,

i jus wan to build a 3.7v mod for my echo cartos ....

apparently, running off 18650 , however, i did fried the cartos when i try to connect them up

upon some reading now (which i shld had done so early) , the echo cartos are running on 3.4v , thus a 4.2v straight up, fried it ... is it?

so, how much ohms i mus put inbetween of them to make it work ....

thanks in advance ....
---------------------------------------------------------------------

issue resolved .... was a short ,,,, :x

 

[asdaq]

According to health cabin they should be OK

Echo cartomizer is cone shaped and perpectly compatible with eGo/eGo T batteries 3.7V-6V.

Resistance: 2.4 to 2.7 ohm

If they were old then maybe the higher voltage would be to blame.

Just how is it you have them hooked up? Pics maybe?

 

[WillyB]

elo,

i jus wan to build a 3.7v mod for my echo cartos ....

apparently, running off 18650 , however, i did fried the cartos when i try to connect them up

upon some reading now (which i shld had done so early) , the echo cartos are running on 3.4v , thus a 4.2v straight up, fried it ... is it?

.

Well that's not exactly correct. The "are running on 3.4v" is probably loaded volts, your 18650 is probably running them at 3.6-3.8V loaded. That could maybe make them a little harsh, but it's not that much more to "straight up, fried it".

 

[Smoking Panda]

the setup was a simple , carto to battery to thumbswitch ....

i did manage to get some vapour in the first few seconds, however, subsequent activiation .... suddenly, a spark ! and all is dead ....

after that, i remove the inside and try to connect again ... = no effect ...

a closer look (with my bad eyesight ), the nichrome wire seems to had fried/blackened ...

thus, i realise i had to drop the voltage inorder for the cartos to work ... but has no idea how much ohms is needed to be added ....

 

[Smoking Panda]

According to health cabin they should be OK





If they were old then maybe the higher voltage would be to blame.

Just how is it you have them hooked up? Pics maybe?

yea, i thought that statement was truth .... infact the carto is new :x .....

well it did say that its compatile with ego batteries ... not mod :x

sob sob

 

[Smoking Panda]

actually, how much current is being passed through the cartos?


anyone knows? .... in mah .....

 

[mwa102464]

Sounds like with the spark you may have shorted it and fried it with this set up your using, an 18650 fully charged at 4.19-4.2 wont even come close to messing up that carto, I have ran them at 5v and no issue.

 

[Smoking Panda]

yea ... it might be a short

i disasembly everything last night upon failure ... i think i shld try to re-assemble the stuffs again .... to try .... ( finger cross ) ..... sigh .... [ first experiments always cost $$$ ]

 

[WillyB]

Sounds like with the spark you may have shorted it and fried it with this set up your using, an 18650 fully charged at 4.19-4.2 wont even come close to messing up that carto, I have ran them at 5v and no issue.

So you experience with the Echo cartos?

 

[Godzilla]

I would immediately suspect the atty connector.

It is not the easiest to solder the positive and the negative wire, without a short. I would check to make sure the rubber insulartor between the center pin, and the atty connector housing is intact, and not fractured. That can cause an immediate short, but normally your battery will shut down before there is a spark. Next I would suspect the push button you installed, and lastly, the master switch if your mod has one. Make sure non of your solder connections are touching any others.

 

[gazob]

Ive run echo-e cartos on a variable watt box at 12 watts, so thats somewhere between 5.3 and 5.7 Volts, didnt blow the carto, but was too hot for the liquid. When i can be bothered (i dont particularly like them) I run them around 10watts (no precise readout on mod) which is right around 5 Volts.

 

[Smoking Panda]

@ Godzilla,

thanks for the advice given, shall taken note of all the details ... i am rebuilding everything from scratch .... wish me luck

 

[Smoking Panda]

thanks everyone for the encouragement especially godzilla ....

i recheck everything and rebuild from scratch .... and i finally made it .....

although, its looks abit rough, but so long it works, i am happy it does

yea, the mod is based on a dual 18650 mod box .... it can run either on 1 or 2 18650 .... connected to a simple presurre switch .....

 

[Godzilla]

Man that thing is a beast! Did you get that box on ebay? I have been looking to build a juice feeder, and that may be just the ticket. Looks like that box would make a nice dual 18650 5v mod as well. Does the box close easily and stay closed, or are there set screws?

Glad you got it working.

 

[Smoking Panda]

i got that box from a forum supplier .... here ...

this is the only box that holds 1 or 2 18650s .... on the market [i did research] ....

but the box dun close well, upon vapouring i kept accidentally 'open' the cover ....
nor has screw holds to fully secure ...

one thing that still bugs me is that, the connector dun seems to remain in its place, it kept turning when i turn ... lols, i may apply some super glue onto it ... :x

 

[devast]

one thing that still bugs me is that, the connector dun seems to remain in its place, it kept turning when i turn ... lols, i may apply some super glue onto it ... :x

You should use epoxy, or hot glue to fix the battery connector.

 

[Rocketman]

maybe a stronger box would help

 

[WillyB]

You should use epoxy, or hot glue to fix the battery connector.

Not hot glue. The connector gets quite warm, plus the hot glue I've tried does not hold up well to eliquid.

 

[Smoking Panda]

infact, i had tried some putty ... but as usual it sticks to itself but not well with the surroundings ... like plastic and alloy atty ...

for this first mod, i think i will jus live with it ... lols .... as long it works, it has already serve its purpose ...

i have that metal casing too , but i think i got to get some more 510 adapters inorder for it to work without much rotational ...

i think i shall go save some more money to get a silver brazing rod .... to 'braze' the atty to the metal box ... :x hmmmm

 

[Smoking Panda]

btw, any recommendation of juice mixture(pg+vg) for using with 4 volt +/- .... apparently my current juice from dk, seems to taste abit less flavour while vaporing ....