Spare parts (help needed)

[Greg]

Jan 6, 2014 21:22:11 GMT Super-Shiny said:

Phewwwwwwwwwwwwwwwwwwww i am glad that is over, i am starting to not want to make the mod Greg

Hope I haven't put you off, I'm quietly confident you'll regain your momentum now 

[Greg]

Jan 6, 2014 21:21:41 GMT testdruif said:

Jan 6, 2014 21:15:33 GMT Greg said:

Yes at 8 amps, 4 amps per fuse both 3 amp fuses would blow.

So you need to determine the maximum input current you want the device to run at, I think I read earlier the dna20 board was rated at 6 or 7 or 8 amps input max.

So if the max is 8 amps then you cold fit 2 4a fuses. Alternatively if the board is rated at 8 amps but you knew from a vaping perspective you would never want to go above a certain wattage that equated to 6 amps input then you could use two 3 amp fuses. As stated earlier with 6 amp fuse total you don't want to actually draw 6 amps as the fuse will blow but marginally below 6 amps is fine indefinitely.

Thanks for your insights gregb!

The maximum input current for the board itself is 7 watt.

So as per your provided information with putting the batteries in parallel they would both provide 3.5 amps (if that would be needed) so having 2 fuses of 3.5 amp (setup as shown in romelee's picture) that would suffice?

Yes that pretty much spot on, only caveat is you wouldn't want to operate with 3.5 amps flowing through each fuse as they would blow. But marginally below 3.5 amps each would be fine, say 6.8 amps total. Depending on the fuse used there would also be tolerance in the fuse trip point in terms of a small percentage.
Super-Shiny ignore this bit 

[testdruif]

I can still remember the first 2 pages of the list "why not just use protected batteries"

quote from somewhere on the net:

The primary difference between the Protected and Unprotected batteries is that the protected batteries have a small circuit board, typically on the bottom of the battery, that stops the charging or discharge of the battery in certain circumstances. Some of the circumstances in which the circuit include: Over-Charge, Over-Discharge, Short-Circuit, and in some cases, overheating.

But on the other hand, we now learned more about parallel batteries and where you can put fuses with the positive and the negative effects of both options (fuse wise).

Another great thread to keep for future reference for everyone who wants to mess around with fuses

[Greg]

Jan 6, 2014 21:42:07 GMT testdruif said:

I can still remember the first 2 pages of the list "why not just use protected batteries"

quote from somewhere on the net:

The primary difference between the Protected and Unprotected batteries is that the protected batteries have a small circuit board, typically on the bottom of the battery, that stops the charging or discharge of the battery in certain circumstances. Some of the circumstances in which the circuit include: Over-Charge, Over-Discharge, Short-Circuit, and in some cases, overheating.

But on the other hand, we now learned more about parallel batteries and where you can put fuses with the positive and the negative effects of both options (fuse wise).

Another great thread to keep for future reference for everyone who wants to mess around with fuses

Your right mate we could always take the easy route, but wouldn't life be boring 

[Super-Shiny]

Final diagram Greg testdruif



No more

[testdruif]

Jan 6, 2014 21:48:23 GMT Super-Shiny said:

Final diagram Greg testdruif



No more

absolutely correct! still 6 amp limit but I'm curious on how it will go (maybe you can do some testing to see how it performs and when exactly it fails)

[Greg]

Jan 6, 2014 21:50:51 GMT testdruif said:

Jan 6, 2014 21:48:23 GMT Super-Shiny said:

Final diagram Greg testdruif



No more

absolutely correct! still 6 amp limit but I'm curious on how it will go (maybe you can do some testing to see how it performs and when exactly it fails)

You mean you want him to draw 8 amps and see which blows first, the fuses or the DNA20

[testdruif]

Jan 6, 2014 22:07:20 GMT Greg said:

Jan 6, 2014 21:50:51 GMT testdruif said:

absolutely correct! still 6 amp limit but I'm curious on how it will go (maybe you can do some testing to see how it performs and when exactly it fails)

You mean you want him to draw 8 amps and see which blows first, the fuses or the DNA20

Just 7 amps. If one is able...
With a single battery and 1.2 ohms at 20 watts i get the "check battery" error suggesting my battery can't deliver

[Super-Shiny]

Greg testdruif Just finished my final....yes final diagram as i will use this with my guide, can you both confirm this is fine with the fuses i am using (jokes of blowing up aside please)

[testdruif]

Jan 6, 2014 22:15:40 GMT Super-Shiny said:

Greg testdruif Just finished my final....yes final diagram as i will use this with my guide, can you both confirm this is fine with the fuses i am using (jokes of blowing up aside please)

looks perfect but it might also be nice to add the connectors for the buttons and the atty on there to complete the picture?

[Super-Shiny]

Jan 6, 2014 22:18:01 GMT testdruif said:

Jan 6, 2014 22:15:40 GMT Super-Shiny said:

Greg testdruif Just finished my final....yes final diagram as i will use this with my guide, can you both confirm this is fine with the fuses i am using (jokes of blowing up aside please)

looks perfect but it might also be nice to add the connectors for the buttons and the atty on there to complete the picture?

That will be on a different piccy, once i get my head around it all i will make a very simple step by step guide

[Greg]

Jan 6, 2014 22:15:40 GMT Super-Shiny said:

Greg testdruif Just finished my final....yes final diagram as i will use this with my guide, can you both confirm this is fine with the fuses i am using (jokes of blowing up aside please)

All good mate

[jcol]

Jan 6, 2014 22:20:13 GMT Super-Shiny said:

Jan 6, 2014 22:18:01 GMT testdruif said:

That will be on a different piccy, once i get my head around it all i will make a very simple step by step guide

Yes please, i haven't a clue about this type of thing, but thanks to this thread i am learning loads.
And well done to Raid, Testdruif and gregb, very informed explanations
Oh and Super-Shiny for getting his head around it (eventually )

[Super-Shiny]

testdruif Greg

Done some few diagrams, still not finished.

DNA20 Board:



Battery Diagram:



Box Mod:

[testdruif]

Jan 7, 2014 17:36:59 GMT Super-Shiny said:

testdruif Greg

Done some few diagrams, still not finished.

DNA20 Board:



Battery Diagram:



Box Mod:

Clear as day!