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dl12345

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Posts: 47
Reply with quote  #16 
As a followup to the last post, I find I still need to remove the 510 plate regularly and clean the threads on the plate as well as the threads on the case. It appears that (possibly) oxidation builds up in the threads over time and messes with resistance. If it's not oxidation I'm not quite sure what it is (it's not liquid I don't think because my attys don't leak). Cleaning it with a cotton bud and isopropyl alcohol works
Daddi89

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Posts: 26
Reply with quote  #17 

I was just going to ask if you find any improvement overtime...

We should try with some noalox and see if it will keep up longer.

Kostant

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Reply with quote  #18 
Look at this link

http://www.esigarettaportal.it/forum/156-battery-box/61324-ufficiale-hcigar-vt75-nano-dna75/page53

post 525 and 526

This may be a definitive solution

I made the fix and it works

Bye
Daddi89

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Reply with quote  #19 

grazie compare, dopo vedo di farlo pure io appena torno a casa a Londra, non entravo piu su esigarettaportal da anni...

Ops, sorry guys...

Kostant

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Reply with quote  #20 
@Daddy89 Ciao paesano
FairCold

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Reply with quote  #21 
Quote:
Originally Posted by Kostant
Look at this link

http://www.esigarettaportal.it/forum/156-battery-box/61324-ufficiale-hcigar-vt75-nano-dna75/page53

post 525 and 526

This may be a definitive solution

I made the fix and it works

Bye


can some explain it in english, i can't understand from google translate. how is the washer is connected to the 510 plate? soldered or just a touch connection?
Kostant

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Reply with quote  #22 
@FairCold

The washer is connected to the 510 plate by the compressed mechanics connection that is created when you screw the 510 plate to the box case .

 
Daddi89

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Posts: 26
Reply with quote  #23 

So ATM there are two possible way to fix this damn mod, the issue is caused by the not so proper connection between the atty gnd and the board ground (caused by a silly engineering by hcigar) overtime the 510 plate will oxidise and fucks up the gnd connection (crated by the 510 top plate, the black plate just down this one and mostly the entire body)

First way to fix her (and easiest to do) is by remove a thin layer of the 510 black plate (just under the removable 510 hybrid plate) with some sand paper (i used 180) then wrap with an aluminium foil the outer part of the battery box (not the board part) till the inside, including the 510 (so in this way youre going to create a new conductive layer between the two parts of the body and between the two 510 plates) and then remove the excess over the positive 510 pin (just the center ofc) and battery.

Second way (not so difficult but not so dumbproof like the first one) is to solder an electrical wire to the other ground connection on the board itself, peel the cable and leave it between the two 510 plates. plus if you want, add another one at the bottom of the board and leave it between the battery cap and the battery itself. (following this procedure you will have 4 wires in total soldered to the board instead of the original 2)

For now i did the aluminium foil trick, will update in the next days/hours and see if there are still any resistance fluctuation overtime.

FairCold

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Posts: 4
Reply with quote  #24 
Quote:
Originally Posted by Daddi89

So ATM there are two possible way to fix this damn mod, the issue is caused by the not so proper connection between the atty gnd and the board ground (caused by a silly engineering by hcigar) overtime the 510 plate will oxidise and fucks up the gnd connection (crated by the 510 top plate, the black plate just down this one and mostly the entire body)

First way to fix her (and easiest to do) is by remove a thin layer of the 510 black plate (just under the removable 510 hybrid plate) with some sand paper (i used 180) then wrap with an aluminium foil the outer part of the battery box (not the board part) till the inside, including the 510 (so in this way youre going to create a new conductive layer between the two parts of the body and between the two 510 plates) and then remove the excess over the positive 510 pin (just the center ofc) and battery.

Second way (not so difficult but not so dumbproof like the first one) is to solder an electrical wire to the other ground connection on the board itself, peel the cable and leave it between the two 510 plates. plus if you want, add another one at the bottom of the board and leave it between the battery cap and the battery itself. (following this procedure you will have 4 wires in total soldered to the board instead of the original 2)

For now i did the aluminium foil trick, will update in the next days/hours and see if there are still any resistance fluctuation overtime.



Can u share picture of the modification that u have done. I didn't really get the idea of it. I meant for the first method

Thanks..
Daddi89

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Posts: 26
Reply with quote  #25 
Quote:
Originally Posted by FairCold
Can u share picture of the modification that u have done. I didn't really get the idea of it. I meant for the first method Thanks..


http://www.esigarettaportal.it/forum/156-battery-box/61324-ufficiale-hcigar-vt75-nano-dna75?p=936693&ampviewfull=1#post936693

my phones battery died and i couldnt take any, i just did like him [wink]

edit: after 3 hours of standby ohms cold ohms are rock solid (usually i was having a 0.01 ohm increase every hour of standby)
zanoni

Junior Member
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Posts: 4
Reply with quote  #26 
Open. Tighten the DNA screws to the frame ... clean and close. China. 5 minutes you fix it.
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