Breaktru Forum

eCigarette Forum => Modding => Topic started by: Breaktru on December 08, 2012, 12:23:30 PM

Title: ZMax V2 in a Box
Post by: Breaktru on December 08, 2012, 12:23:30 PM
(http://breaktru.com/ecig/zmax01.jpg)(http://breaktru.com/ecig/zmax06.jpg)
(http://breaktru.com/ecig/zmax02.jpg)   (http://breaktru.com/ecig/zmax03.jpg)

Menu Options:

1.Uu   Adjust Voltage Up

2.Ud   Adjust Voltage Down

3.So 
     S.on = Turns your device on.
     S.oF = Turns your device off.

4.Uc   Check voltage of battery

5.dS   Will display 1 of these selections every time you push the "vape" button, depending upon which one you select that you want shown?
     do = Display atomizer/cartomizer output voltage
     du = Display battery output voltage
     dR = Display atomizer/cartomizer resistance

6.Lo 
     L.on = Turns your LED on.
     L.oF = Turns your LED off.

7.UP  Voltage or Power
     Uo = Constant Voltage operation
     Po = Constant Power (wattage) operation

8.NR  Choice of V1 or V2 operation
     RNS = This selection gives you the "RMS" accurate output results of the upgraded V2.
     NEA = This selection gives you the "MEAN" less accurate output, but higher power results of the previous V1.


Thanks to my buddy who gifted me the ZMax controller, I was able to make this mod.
Title: Re: ZMax V2 in a Box
Post by: CraigHB on December 08, 2012, 04:26:39 PM
Looks really nice.  Is that a 1000mAh cell?
Title: Re: ZMax V2 in a Box
Post by: Breaktru on December 08, 2012, 04:36:53 PM
Looks really nice.  Is that a 1000mAh cell?

Yes it is. I'v used it in both my MCU mods. The DNA and the 04050C. I get about a full day and charges in less than 2 hrs.
Title: Re: ZMax V2 in a Box
Post by: Breaktru on December 08, 2012, 04:55:49 PM
(http://breaktru.com/ecig/zmax04.jpg)   (http://breaktru.com/ecig/zmax05.jpg)
Title: Re: ZMax V2 in a Box
Post by: CraigHB on December 08, 2012, 05:45:20 PM
Those are nice little cells, those 20C 1000mAh ones, I have a few laying around.  Low internal impedance on them, about 20 mOhms.  The 1400mAh ones I'm using are closer to 30 mOhms, just under the wire for me.  That's pretty tight on run time for me though.  Even the ones I'm using are about the lowest I can get away with.  It goes fast when you run higher outputs.  But, I love having a small mod.  Took me a couple years of mod building to appreciate that.
Title: Re: ZMax V2 in a Box
Post by: Breaktru on December 08, 2012, 06:02:56 PM
Those are nice little cells, those 20C 1000mAh ones, I have a few laying around.  Low internal impedance on them, about 20 mOhms.  The 1400mAh ones I'm using are closer to 30 mOhms, just under the wire for me.  That's pretty tight on run time for me though.  Even the ones I'm using are about the lowest I can get away with.  It goes fast when you run higher outputs.  But, I love having a small mod.  Took me a couple years of mod building to appreciate that.

Sweet mAh size. I remember you said you had them made to order to fit your box. Nice.

I just barely was able to squeeze my box closed. the Thickness of the batt was 6mm.
Cell Size: 63 x 34 x 6mm perfect fit for this mod.
Title: Re: ZMax V2 in a Box
Post by: timesarerough on December 08, 2012, 06:41:06 PM
Thanks to my buddy who gifted me the ZMax controller, I was able to make this mod.

 :applaude:

Very nice D!

Now, let's see what ya make with the next one?

Should be interesting.... :beer-toast:
Title: Re: ZMax V2 in a Box
Post by: Breaktru on December 08, 2012, 06:43:09 PM
:applaude:

Very nice D!

Now, let's see what ya make with the next one?

Should be interesting.... :beer-toast:

Thanks T, got the DNA20 to work on first. But will try to repair those things you sent first.
Title: Re: ZMax V2 in a Box
Post by: CraigHB on December 08, 2012, 08:27:19 PM
I just barely was able to squeeze my box closed. the Thickness of the batt was 6mm. Cell Size: 63 x 34 x 6mm perfect fit for this mod.

For sure, looks like the box was made for that cell.  Really lucky to find a box like that.  I pay through the nose to have them custom made.  I actually designed the box to fit the cells, but I had tight requirements for cell size as well.  Was pretty hard to get it all together, between the cells and the box.
Title: Re: ZMax V2 in a Box
Post by: fsors on December 09, 2012, 12:38:30 AM
Dave Nice Job looks cool keep it in RMS LoL
Shek got any more for me? :popcorn: ;cheers;
Title: Re: ZMax V2 in a Box
Post by: timesarerough on December 09, 2012, 01:53:50 AM
There are 13 Klimax kits on hold, so somebody could drop out at the last minute.

You want to added to the back-up list if somebody drops, fsors?

I've got quite a few of the dual 18650 enclosures left if you wanna build the OKR or PTR controller mods?

There are no extra Zmax V2 controllers left though, 100 of them sold out in about 6 hours.

A second larger shipment was 'in the works', but I just didn't see enough interest to cover the risk of investing in a second shipment.

Title: Re: ZMax V2 in a Box
Post by: fsors on December 09, 2012, 03:23:21 AM
There are 13 Klimax kits on hold, so somebody could drop out at the last minute.

You want to added to the back-up list if somebody drops, fsors?

I've got quite a few of the dual 18650 enclosures left if you wanna build the OKR or PTR controller mods?

There are no extra Zmax V2 controllers left though, 100 of them sold out in about 6 hours.

A second larger shipment was 'in the works', but I just didn't see enough interest to cover the risk of investing in a second shipment.

If someone drops the ball please let me know Shek I like a good Klimax!
encloses too pleese :thankyou: ;cheers;
Title: Re: ZMax V2 in a Box
Post by: Haileah on December 13, 2012, 07:18:52 PM
Now that looks like an easy build. The box is totally awesome too  :thumbsup:
Title: Re: ZMax V2 in a Box
Post by: fsors on December 13, 2012, 11:44:12 PM
anyone drop a ball?
Title: Re: ZMax V2 in a Box
Post by: d_walk on December 17, 2012, 07:38:57 PM
I would be interested in making something with this controller.
If it ever goes on sale someone, please post where and how much.
BTW, great work BT. Nice form size
Title: Re: ZMax V2 in a Box
Post by: timesarerough on December 17, 2012, 08:12:11 PM
I would be interested in making something with this controller.
If it ever goes on sale someone, please post where and how much.
BTW, great work BT. Nice form size

Contact member Rusalka at the ECF for anyone wanting a V2 Zmax controller.

He has quite a few that he's willing to sell.
Title: Re: ZMax V2 in a Box
Post by: Brian9523 on December 18, 2012, 05:15:03 PM
Contact member Rusalka at the ECF for anyone wanting a V2 Zmax controller.

He has quite a few that he's willing to sell.

Sounds good. Really like the case that it's in.
The cut-out for the display and button came out spectacular  :thumbsup:
Title: Re: ZMax V2 in a Box
Post by: timesarerough on December 18, 2012, 09:22:23 PM
Sounds good. Really like the case that it's in.
The cut-out for the display and button came out spectacular  :thumbsup:

Here's the enclosure that Dave used:

http://www.pactecenclosures.com/product-detail.php?productid=227&seriesid=77&classid=25 (http://www.pactecenclosures.com/product-detail.php?productid=227&seriesid=77&classid=25)

I've got a quite a few of these 2 X 18650 ergonomic enclosures I'd like to unload (if anybody's interested?)

(http://s12.postimage.org/bghy7vu9p/2_X_18650_Box.jpg)

There's a prototype in the works using this enclosure with the Zmax V2 controller:

(http://s7.postimage.org/ic2ittmd7/1st_Klimax_Proto_Image_by_Berger.jpg)

This one is being made modular for easy repair and will require no soldering by the end user to repair, replace or upgrade parts.

The tact switch is being bypassed and a micro C&K 3A switch added, which will be the primary.

The board is being completely sealed inside the enclosure and a curved acrylic window is being made for it.

And I think that Dave will be making another one using this enclosure as well.....?  :applaude:
Title: Re: ZMax V2 in a Box
Post by: Brian9523 on December 18, 2012, 09:39:29 PM
Yeah those dual cases are nice. Have a few from ebay. But I really like the small and heavier duty case that Dave used. I had put in an order for a couple already.

Question, how is one to see the display mounted toward the back of the dual case? Is there a cutout on the slide cover?
Title: Re: ZMax V2 in a Box
Post by: timesarerough on December 18, 2012, 09:44:27 PM
Is there a cutout on the slide cover?

Correct.

A hand-made acrylic window is being crafted.

I'm also looking at ways to redesign the enclosure itself to see if it can be modified to seal the electronics end separate from the sliding door....and have the door slide down only exposing the batteries.

It can be done without damaging the function of the door, just haven't gotten around to asking the builder to do it yet.
Title: Re: ZMax V2 in a Box
Post by: timesarerough on December 18, 2012, 09:48:20 PM
But I really like the small and heavier duty case that Dave used. I had put in an order for a couple already.

You could also use the enclosure that Dave used to build the DNA20....I think?
Title: Re: ZMax V2 in a Box
Post by: berger on January 17, 2013, 10:18:02 AM
Correct.

A hand-made acrylic window is being crafted.

I'm also looking at ways to redesign the enclosure itself to see if it can be modified to seal the electronics end separate from the sliding door....and have the door slide down only exposing the batteries.


It wont work that way..the door slides from the top down..:)
I was looking already at separating the door like that but it would take major modifications and magnets that dont have the space with the dual 18650s in it...really just not worth all the trouble with this case...heck...just bending the acrylic is a pita without a very very well temperature controlled oven and vacuum molds
Title: Re: ZMax V2 in a Box
Post by: Breaktru on January 17, 2013, 10:30:09 AM
It wont work that way..the door slides from the top down..:)
I was looking already at separating the door like that but it would take major modifications and magnets that dont have the space with the dual 18650s in it...really just not worth all the trouble with this case...heck...just bending the acrylic is a pita without a very very well temperature controlled oven and vacuum molds

How about clear flexible plastic/film sheets?

Clear Flex Film (http://www.tmi-pvc.com/flexible-film-rolls-extruded-clear-tinted-film-c-147_177_184-l-en.html)
Flex Plastic-China (http://pidegree.en.made-in-china.com/product/ceCxHEflhNki/China-PVC-Flexible-Sheet-Clear-Transparent.html)
Title: Re: ZMax V2 in a Box
Post by: berger on January 17, 2013, 10:57:15 AM
I considered that but I was looking for a cleaner look with the case finished...basically I tight fit the acrylic into the opening after tinting it so it looks more finished and can be spot glued..

Title: Re: ZMax V2 in a Box
Post by: Breaktru on January 17, 2013, 12:52:10 PM
I considered that but I was looking for a cleaner look with the case finished...basically I tight fit the acrylic into the opening after tinting it so it looks more finished and can be spot glued..

Don't get me wrong B, it came out excellent. Just though maybe something with less work would help. Especially if your making many.
Title: Re: ZMax V2 in a Box
Post by: berger on January 17, 2013, 02:37:01 PM
Oh no, I appreciate the input...anything that makes it easier is always a good thing..I was just saying why I didnt go that route...mostly ascetics..:)
Title: Re: ZMax V2 in a Box
Post by: Breaktru on January 17, 2013, 03:23:32 PM
Oh no, I appreciate the input...anything that makes it easier is always a good thing..I was just saying why I didnt go that route...mostly ascetics..:)

It does look real professional. As if it was pre-made like that.  :rockin smiley:
Title: Re: ZMax V2 in a Box
Post by: berger on January 18, 2013, 09:09:34 AM
Thanks Dave...yea the ones i putting together now are flipped around with the window on the front and its all just straight soldered connections so its quite a bit cleaner looking internally anyway
Title: Re: ZMax V2 in a Box
Post by: Ginjo on January 29, 2013, 02:00:41 PM
anybody used a sigelei zmax v2 controller with this? :) was thinking of ripping apart mine and doing this, using a hord switch...
Title: Re: ZMax V2 in a Box
Post by: Breaktru on January 29, 2013, 04:53:13 PM
anybody used a sigelei zmax v2 controller with this? :) was thinking of ripping apart mine and doing this, using a hord switch...

Should work. but..... I wouldn't take apart a perfectly good zmax unless there was something wrong with it.
Title: Re: ZMax V2 in a Box
Post by: Ginjo on January 30, 2013, 07:11:03 PM
Should work. but..... I wouldn't take apart a perfectly good zmax unless there was something wrong with it.

well, nothing wrong with it YET... but the button is starting to misfire, so i'm looking into the future lol
Title: Re: ZMax V2 in a Box
Post by: Ginjo on January 30, 2013, 07:18:55 PM
oh, a follow up, i'm seeing on the pics that the chipset uses a tact switch... noobie question, how would you wire a horn switch after removing the tact?
Title: Re: ZMax V2 in a Box
Post by: Breaktru on January 30, 2013, 07:21:43 PM
oh, a follow up, i'm seeing on the pics that the chipset uses a tact switch... noobie question, how would you wire a horn switch after removing the tact?

You can remove the tact or leave it. Wire in the horn switch where the tact was wired or tack solder across the tact switch.

Looking at the controller horizontally, use either the top 2 legs of the tact or the bottom 2 legs. NOT top and bottom.
Title: Re: ZMax V2 in a Box
Post by: CraigHB on January 30, 2013, 07:43:47 PM
That got me the first time I used a tactile smaller than 6mm square.  I assumed the poles were top and bottom, they were not.  They were right and left.  Now I always check them first.
Title: Re: ZMax V2 in a Box
Post by: Breaktru on January 30, 2013, 07:49:17 PM
That got me the first time I used a tactile smaller than 6mm square.  I assumed the poles were top and bottom, they were not.  They were right and left.  Now I always check them first.

Get me too. I never remember things like that. Had to check w/ the meter before I posted.  :laughing2:
Title: Re: ZMax V2 in a Box
Post by: Ginjo on February 03, 2013, 11:59:35 AM
You can remove the tact or leave it. Wire in the horn switch where the tact was wired or tack solder across the tact switch.

Looking at the controller horizontally, use either the top 2 legs of the tact or the bottom 2 legs. NOT top and bottom.


i think i'll remove it... so if the chipset was horizontal, I'll have to wire it ACROSS...


i'm still waiting for my zmax switch to give out, though.. gotta get me a good case lol
Title: Re: ZMax V2 in a Box
Post by: berger on February 05, 2013, 02:03:52 PM

i think i'll remove it... so if the chipset was horizontal, I'll have to wire it ACROSS...


i'm still waiting for my zmax switch to give out, though.. gotta get me a good case lol

yea...either way no big deal..dont have to..i didnt bother...just soldered wires to the smd feet in place
Title: Re: ZMax V2 in a Box
Post by: redwolfe on February 19, 2013, 08:27:24 PM
Breaktru, was the Li-poly charging board used in the Zmax box an earlier version from Adafruit or a different one? I can't seem to find it anywhere. I'll keep looking.
Title: Re: ZMax V2 in a Box
Post by: Breaktru on February 19, 2013, 09:24:39 PM
Breaktru, was the Li-poly charging board used in the Zmax box an earlier version from Adafruit or a different one? I can't seem to find it anywhere. I'll keep looking.

It's different. Don't remember where I bought the first batch but I ordered 5 more about a month ago and I'm still waiting (China)
See: USB Charger (http://www.ebay.com/itm/130807884170?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2648) Scroll down the page
Title: Re: ZMax V2 in a Box
Post by: CraigHB on February 19, 2013, 09:44:37 PM
Damn that's cheap, how do they do that?

Here's (http://www.ebay.com/itm/5V-Mini-USB-1A-Lithium-Battery-Charging-Board-Charger-Ultra-Small-Module-/261048190436) an active listing.

I even found a review (http://lygte-info.dk/review/Review%20Charger%20TP4056%20UK.html) on it.


Title: Re: ZMax V2 in a Box
Post by: Breaktru on February 19, 2013, 10:07:15 PM
Damn that's cheap, how do they do that?

Here's (http://www.ebay.com/itm/5V-Mini-USB-1A-Lithium-Battery-Charging-Board-Charger-Ultra-Small-Module-/261048190436) an active listing.

I even found a review (http://lygte-info.dk/review/Review%20Charger%20TP4056%20UK.html) on it.


Nice find Craig.
I'm pretty sure I paid a lot more for the first batch I bought.
We talked about this charger before HERE (http://breaktru.com/smf/index.php/topic,588.msg3871.html#msg3871)
Title: Re: ZMax V2 in a Box
Post by: redwolfe on February 19, 2013, 11:39:04 PM
So I assume that the IN+/IN- applies to the load? For example if I wanted to use this charging board with either of the DNA boards I would connect them to those vias, correct?
Title: Re: ZMax V2 in a Box
Post by: utak3r on February 20, 2013, 03:47:13 AM
IN are for a supply, if you don't want to use a miniUSB connector.

BreakTru, have you tried to apply a load (fire an atty) while charging is in progress?
Title: Re: ZMax V2 in a Box
Post by: Breaktru on February 20, 2013, 07:29:55 AM
IN are for a supply, if you don't want to use a miniUSB connector.

BreakTru, have you tried to apply a load (fire an atty) while charging is in progress?

Yes the IN are for a supply voltage (5v).

Haven't used it w/ a load w/ a LOW battery. The charger will not supply the needed amperage with a load when a battery is low. This is not a passthru.
Title: Re: ZMax V2 in a Box
Post by: utak3r on February 20, 2013, 10:24:02 AM
This is not a passthru.

Ok, but if a cell has enough power to run the atty, it will not break the charger? I saw few badly designed chargers, which don't allow applying a load while operating...
Title: Re: ZMax V2 in a Box
Post by: Learfx on February 25, 2013, 09:23:27 PM
Hello All, I have the board out of a clearomax that I was going to fit inside a piece of 3/4" hard copper. the acrylic housing basically fell apart from use.  What I wanted to know is if it's possible to set the board up with a touch switch.  I have some P-channel mosfets and have successfully used one in a copper mod using the Ti PTR08100 VV chip (pics coming soon)  So is it possible? Thanks again Breaktru for all your help!  ;bow;

(http://www.learfx.com/tmp/clrmax.jpg)
Title: Re: ZMax V2 in a Box
Post by: CraigHB on February 26, 2013, 02:32:24 AM
It's possible.  Need to check the board to see what kind of voltage it uses on the switch.  If it's high enough, just jump the switch with a small P-MOS and a pull-up on the gate.  Use a grounding touch probe.  Otherwise, you can use an N-channel with a pull down on the gate and hot touch probe.  Use a protected MOSFET.
Title: Re: ZMax V2 in a Box
Post by: Learfx on March 05, 2013, 09:36:14 PM
Hello, Thank you for the reply. As best I can tell it uses the full voltage of  an 18650 battery.  I rigged up power to the chip and bypassed the button using a piece of wire. I was able to activate the menu on the chip by running the wire from the two button connection points on the chip. I was able to tap one side of the button's connection point to simulate repeated button presses. and it worked perfectly. I don't see an issue with connecting a p-channel mosfet.  Now I just need to sit down and cram it all into a piece of 3/4 copper.
Title: Re: ZMax V2 in a Box
Post by: CraigHB on March 06, 2013, 03:24:00 AM
Sounds perfect.  P-channels are better since you ground the gate through the pull up resistor.  With an N-channel, the probe is a hot wire off the battery.  If you neglect to add a limiting resistor, you could potentially short the battery.
Title: Re: ZMax V2 in a Box
Post by: fsors on March 06, 2013, 03:27:45 AM
I advise you listen to Craig he's the man when it comes to this sort of question/idea :D
Title: Re: ZMax V2 in a Box
Post by: fsors on March 06, 2013, 03:29:07 AM
In fact I am in hope he will post a tutorial on this soon  ;hubba; :yes" ;hubba;
Title: Re: ZMax V2 in a Box
Post by: tmassey on May 21, 2013, 09:45:21 PM
 ONOW THAT I HAVE SECURED MINE. madvapes is selling these z max v2 boards at $20. http://www.madvapes.com/zmax-variable-volt-pcb.html   have been wanting to try a zmax for a while now but refuse to pay 80 dollars or more, especially since i assume the dna 20 will put it to shame,i just want to know first hand lol
Title: Re: ZMax V2 in a Box
Post by: Breaktru on May 22, 2013, 08:35:48 AM
ONOW THAT I HAVE SECURED MINE. madvapes is selling these z max v2 boards at $20. http://www.madvapes.com/zmax-variable-volt-pcb.html   have been wanting to try a zmax for a while now but refuse to pay 80 dollars or more, especially since i assume the dna 20 will put it to shame,i just want to know first hand lol

Thanks for the link to MV. Nice find  :thumbsup:
Title: Re: ZMax V2 in a Box
Post by: charming on May 22, 2013, 10:53:43 AM
ONOW THAT I HAVE SECURED MINE. madvapes is selling these z max v2 boards at $20. http://www.madvapes.com/zmax-variable-volt-pcb.html   have been wanting to try a zmax for a while now but refuse to pay 80 dollars or more, especially since i assume the dna 20 will put it to shame,i just want to know first hand lol

For 20 bucks, it's worth a shot at building one. Probably use a small box for the ease of building one like breaktru did. I can always use a backup mod on hand
Title: Re: ZMax V2 in a Box
Post by: tmassey on May 22, 2013, 06:34:48 PM
kinda my thinking too. might try an an 18650 z max altoidss gum tin
Title: Re: ZMax V2 in a Box
Post by: charming on May 22, 2013, 07:59:21 PM
kinda my thinking too. might try an an 18650 z max altoidss gum tin

Cool, sounds good. Are you gonna use the on-board tact or external?
Title: Re: ZMax V2 in a Box
Post by: tmassey on May 23, 2013, 10:11:54 AM
im thinking the onboard if i can get away with it will have to see if its flush with the screen
Title: Re: ZMax V2 in a Box
Post by: Breaktru on October 08, 2013, 02:11:24 PM
Went to use my mod today and it did not work. Only seen 3 bars across the display.
I un-soldered the li-po battery and re-soldered in hopes that it would reset the controller which it did not.
I then played around with the menu and found that menu #3 was set to OFF. Turned it on and it's working fine.
I have no idea how that happened but all is good now.

(http://breaktru.com/ecig/zmax_off.jpg)
Title: Re: ZMax V2 in a Box
Post by: berger on October 14, 2013, 03:16:20 PM
Yea, thats the display it makes when the display is turned off via the menu..:) (one would think it meant off off LOL)
These chips seem to be hit and miss from the dozen or so ive dealt with, but it usually shows up very soon if its faulty...goes up in smoke within the first few minutes on 3 of them I had that were bad...I have another that went about 6 months and then quit  raged:
Title: Re: ZMax V2 in a Box
Post by: Breaktru on October 14, 2013, 04:12:21 PM
Thanks B. I wasn't familiar with the display output being I never used the OFF mode  :facepalm:

It's been 10 months using the Zmax. I guess I'm lucky it's holding out. Then again I alternate mods and don't use a particular one all the time. I use one until it needs charging and then go on to the next one.

The burned out ones I've seen came out of Zmax tube PVs. Most likely the crappy 510 connectors shorting out. Guess the short protection sucks.
Title: Re: ZMax V2 in a Box
Post by: CraigHB on October 14, 2013, 04:16:53 PM
Short circuit protection is one of the primary features you want in an advanced mod.  The fact that board is not very tolerant to short circuits is a huge ding against it.  I can see just by the photos they're using the cheapest components available.  That does not incite much confidence in the design either.
Title: Re: ZMax V2 in a Box
Post by: Breaktru on October 14, 2013, 04:19:48 PM
It does have some sort of protection. It will not fire for coils 1.3 ohms or less but I guess it's not a reliable circuit
Title: Re: ZMax V2 in a Box
Post by: thinman on January 10, 2014, 09:24:02 PM
I have one of these boards I acquired from MV a while back. I haven't built a mod  for a year or more so I might put it to use since all my previous builds have gone belly up. I need to bite the bullet and get a soldering station but it's coming soon.

Thanks for the forum Dave, I've been looking around and excellent info everywhere. :)
Title: Re: ZMax V2 in a Box
Post by: Breaktru on January 10, 2014, 09:49:01 PM
You're welcome and thank you.  Congrats on your first post
Title: Re: ZMax V2 in a Box
Post by: thinman on January 10, 2014, 10:18:57 PM
Aren't these boards capable of using series as well as parallel batteries? I have a "C" cell box and a couple of AW 26500s that I was using with a SW ADJ 3 that just died. I'm fairly certain the board will fit.
Title: Re: ZMax V2 in a Box
Post by: thinman on January 11, 2014, 01:37:39 AM
OK, went searching for the answer and I have a V2 board and they make an extension  cap for the ZMAX  V2 for stacked 18350. So it's a go unless someone has a reason why it may not be a good idea.
Title: Re: ZMax V2 in a Box
Post by: CraigHB on January 11, 2014, 03:13:50 PM
It has a booster that engages when a single cell is used.  It disengages when series cells are used.  It's the Chinese way of handling outputs above and below single cell voltage (booster + PWM).  However, the design has its disadvantages in that it will never be able to go much above 6V and power outputs will always be limited by PWM peak currents.  Good cheap solution though and that's what the Chinese are good at.  Kind of inventive actually, but I'd never design something like that myself, too convoluted.
Title: Re: ZMax V2 in a Box
Post by: thinman on January 11, 2014, 03:17:18 PM
Thanks Craig. Sounds like it would operate better in series.
Title: Re: ZMax V2 in a Box
Post by: CraigHB on January 11, 2014, 03:54:44 PM
Yes, you probably get better atomizer performance with series cells since it bypasses the booster.  That improves efficiency and you get a higher peak voltage for the PWM.  However, there is one advantage to a single 18650 compared to two 18350s.  That is the 18650 carries considerably more charge for various reasons.  You can get better battery performance with an 18650.  However, you have the extra efficiency hit with the booster online so that means more wasted power and some loss of run time.  Hard to say exactly when the difference in run times would be.  I think it would be better with the 18650 though.
Title: Re: ZMax V2 in a Box
Post by: thinman on January 11, 2014, 04:20:18 PM
Yeah, I can see that with the 18350s. I'm planning on trying 2 AW 26500s 2300 mAh. I could also run them in parallel for longer run time.
Title: Re: ZMax V2 in a Box
Post by: CraigHB on January 11, 2014, 04:36:08 PM
The AW cells were good cells at one point, but they've been left in the dust of the Japanese 18650 cells.  You could use two Samsung INR18650-30R cells in series or parallel and get almost the same run time with better drain characteristics and way less size.  The LG ultra-high drain cells are really hard to get right now, but two of those would outperform the AW 26650s in every regard with half the size.

When you're using the best performing cell presently available, there's no need to use the Zmax's booster.  Run them in series.
Title: Re: ZMax V2 in a Box
Post by: thinman on January 11, 2014, 04:39:16 PM
I agree. I just happen to have these.
Title: Re: ZMax V2 in a Box
Post by: kurtus on January 20, 2014, 09:22:54 PM
Hey Break, nice little mod you built here, inspired me to dig my retired vmax out of the closet and yank the chip out of it, 510 connector was shot so its a perfect candidate.

Couple questions though, I see a negative lead wire jumpered from the in- to the bat-, is this required to make the usb board work, I figured it would just need the batteries wired into the Bat + and - inputs of the usb board. Problem number 2 is that this box I'm building uses series batts, can I just wire the usb board to the batts in a parallel config and wire the output from the batts in series to the vmax chip? In my head I see no issue but I'm no guru.

For the switch, the on board tact is garbage on this chip and I'd like to use a better tact switch remotely. Do I need to find a switch rated for 5 amps or does it really matter here? I see lots of people using tacts on the dna chips with no issue and those tacts have a very low amperage rating on them. Also can I just wire across just the top 2 legs or bottom 2 legs to get the switch to work? If I remove the tact will I have to jumper the opposing legs together then just run the switch to the switch legs? This is hard to explain lol hope this makes a bit of sense. Thx
 
Title: Re: ZMax V2 in a Box
Post by: Breaktru on January 20, 2014, 09:55:18 PM
The Neg wire that you see on the USB board is there because I broke the tracer on the - batt. The - In and the - batt is internally connected so there is no need to add the jumper like my photo.

No need for a 5A switch. A tact will do. Just run two light gauge wires to the top or bottom of the onboard tact. Not sure if it's the top or bottom (trial and error will tell you). You can remove the onboard tact and you don't jump it. It's either the top or bottom two.
Title: Re: ZMax V2 in a Box
Post by: kurtus on January 20, 2014, 10:23:44 PM
Thanks, that answers that.

Now realizing that my USB charger is probably not going to work unless I wire some kind of switch in to change from series to parallel. Do you see an easier way, issue is that the vmax chip is set up for series batts only. Thx for the reply man

Edit, I'm thinking the easy way is to use a sp switch to break the positive and negative series connection and wire each batt to the usb board individually? Wish there was a way to do it easier without a switch, trying to keep it compact using 2x 18350 batts and the case wont open easy to just take the batts out so a charge circuit is needed.
Title: Re: ZMax V2 in a Box
Post by: Squance on January 21, 2014, 12:43:00 PM

Now realizing that my USB charger is probably not going to work unless I wire some kind of switch in to change from series to parallel. Do you see an easier way, issue is that the vmax chip is set up for series batts only. Thx for the reply man

Edit, I'm thinking the easy way is to use a sp switch to break the positive and negative series connection and wire each batt to the usb board individually? Wish there was a way to do it easier without a switch, trying to keep it compact using 2x 18350 batts and the case wont open easy to just take the batts out so a charge circuit is needed.

This is the way to do it: http://breaktru.com/smf/index.php/topic,543.0.html (http://breaktru.com/smf/index.php/topic,543.0.html)
Title: Re: ZMax V2 in a Box
Post by: chessdeviant on April 30, 2014, 08:26:07 PM
Hello all,
There are some great mods on this forum. I have a question about this or other ZMAX pcb mods. How are you holding the pcb in place? Are people using hot glue or epoxy to secure the pcb so the screen and the button stay in place? I am asking as I have a busted Zmax (pcb is still good) that I want to put into an 4AA box and situate in the center with the button and screen running down the middle. I just don't want to destroy the pcb.
Again some great info and mods on this forum.
Thank you
Jeff
Title: Re: ZMax V2 in a Box
Post by: Breaktru on April 30, 2014, 08:42:09 PM
Because I am using the on-board firing switch, I used epoxy to hold the board securely when pressing the button. You only have to epoxy the outside edges of the board and not use too much in case it needs to be removed. Before epoxying, rough up the box surface so the epoxy sticks.

If you were using an alternate off-board switch you can use hot glue. But the on-board switch would have to be removed to fit the display flush.