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darthvaper13

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Hello I build a DNA 75 with a dual 18650 the issue im having is when pushing the fire button it will turn on then off if I hold the power button it will say battery check. I cant get it to fire at all or stay on. The batteries have charged and the led did turn green. The batteries are 3000mAh 3.7v LG batteries. Also they are wired parallel, Please help thanks
ChunkyButt200

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welcome to the forum darthvaper13. does the board stay powered on with a usb charger plugged in? also, will the mod connect to escribe? if it does, can you post a screen shot of device monitor with batteries installed and "pack voltage" checked? 
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Latest versions of EScribe: DNA 200 • DNA 75  Common problems
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darthvaper13

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Quote:
Originally Posted by ChunkyButt200
welcome to the forum darthvaper13. does the board stay powered on with a usb charger plugged in? also, will the mod connect to escribe? if it does, can you post a screen shot of device monitor with batteries installed and "pack voltage" checked? 


Sorry I only have Mac's so I can't use escribe at this time but yes with the usb plugged it the dna stays on, thanks
awsum140

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You did make connections to the JST connector to allow balancing the batteries?
darthvaper13

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Quote:
Originally Posted by awsum140
You did make connections to the JST connector to allow balancing the batteries?


Sorry I'm a noob how would I do that, thanks
BillW50

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Quote:
Originally Posted by awsum140
You did make connections to the JST connector to allow balancing the batteries?

Its a DNA75. There isn't any JST balance connection. And the dual 18650s are wired in parallel. As far as the DNA75 is concern, it is one large capacity 3.7v battery.
awsum140

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Sorry, I saw DNA200 heading and missed the DNA75 part....duhhhh
ChunkyButt200

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Quote:
Originally Posted by darthvaper13
Sorry I'm a noob how would I do that, thanks
you have a dna 75 right? that board does not have balance taps. the dna 200 does. disregard awsum140's comment (sorry awsum140!). i dont want you to get confused. could post some pics of your wiring and board; front and back.

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1.21 JIGAWATTS............GREAT SCOTT!........WHAT THE HELL IS A JIGAWATT?
• I am not employed by nor do I represent Evolv Inc.  All opinions are my own, they are just opinion not fact and can be wrong •
Latest versions of EScribe: DNA 200 • DNA 75  Common problems
EVOLV HELP DESK - https://helpdesk.evolvapor.com/?a=add
LOST VAPE WARRANTY REPAIR - http://www.lostvaperepaircenter.com
BillW50

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Quote:
Originally Posted by darthvaper13
Sorry I'm a noob how would I do that, thanks

Do you have a volt meter or a multimeter or something that can read the battery voltages (battery charger perhaps)? As check battery error means the DNA75 thinks something is wrong with the battery voltage.
darthvaper13

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Quote:
Originally Posted by ChunkyButt200
you have a dna 75 right? that board does not have balance taps. the dna 200 does. disregard awsum140's comment (sorry awsum140!). i dont want you to get confused. could post some pics of your wiring and board; front and back.


ok heres the monitor, thanks 

Screenshot (1).png 

darthvaper13

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Reply with quote  #11 
Quote:
Originally Posted by ChunkyButt200
you have a dna 75 right? that board does not have balance taps. the dna 200 does. disregard awsum140's comment (sorry awsum140!). i dont want you to get confused. could post some pics of your wiring and board; front and back.
20160731_090203.jpg  20160731_090050.jpg 

VapingBad

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Reply with quote  #12 
I can't see from the photo so excuse me it it is so, but the 510 -ve needs to connected to the battery -ve or board GND.
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• I am not employed by nor do I represent Evolv Inc.  All opinions are my own, they are just opinion not fact and can be wrong •

Latest versions of EScribe: DNA 200/250DNA 75
Common problems
ChunkyButt200

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Reply with quote  #13 
i would check your battery sled leads with a volt meter. escribe is saying you only have 0.90v's going to the board, no where near enough. recheck what kind of voltage you have at the board. you have a poor connection somewhere. how do you have your 510 wired? looks like only one wire and in the wrong place. as VB said, it's hard to tell from the photo. the 510 positive (spring loaded pin part) goes to the "out" of the board. do you have a ground wire from the 510 to the board?
__________________
1.21 JIGAWATTS............GREAT SCOTT!........WHAT THE HELL IS A JIGAWATT?
• I am not employed by nor do I represent Evolv Inc.  All opinions are my own, they are just opinion not fact and can be wrong •
Latest versions of EScribe: DNA 200 • DNA 75  Common problems
EVOLV HELP DESK - https://helpdesk.evolvapor.com/?a=add
LOST VAPE WARRANTY REPAIR - http://www.lostvaperepaircenter.com
darthvaper13

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Reply with quote  #14 
Quote:
Originally Posted by ChunkyButt200
i would check your battery sled leads with a volt meter. escribe is saying you only have 0.90v's going to the board, no where near enough. recheck what kind of voltage you have at the board. you have a poor connection somewhere. how do you have your 510 wired? looks like only one wire and in the wrong place. as VB said, it's hard to tell from the photo. the 510 positive (spring loaded pin part) goes to the "out" of the board. do you have a ground wire from the 510 to the board?


Yes the spring pin is wired to out and and the ground is there.
ChunkyButt200

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Reply with quote  #15 
ok good. back to the issue at hand........you're losing power somewhere between the batteries and the board. whether it be the the sled terminals, wires soldered to the terminals or where the wires are soldered to the board. does the voltage change in device monitor if you spin or wiggle the batteries while they're in the sled? figure that out and your problem should be solved.
__________________
1.21 JIGAWATTS............GREAT SCOTT!........WHAT THE HELL IS A JIGAWATT?
• I am not employed by nor do I represent Evolv Inc.  All opinions are my own, they are just opinion not fact and can be wrong •
Latest versions of EScribe: DNA 200 • DNA 75  Common problems
EVOLV HELP DESK - https://helpdesk.evolvapor.com/?a=add
LOST VAPE WARRANTY REPAIR - http://www.lostvaperepaircenter.com
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