~The Billet BoX~

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Nibiru

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I'm sure it's fine... but I get all sorts of warnings popping up by my browser and firewall about the security.

Nib


BBF security certificate.jpg
 

ThreeDJ16

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Big Screen D

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Can someone chime in with the max watts the BB can run at without risking damage?

The site says min 2.4 ohm carto. So 2.4 ohm carto at the max voltage of 5.5 equates to 12.6 watts.

So I should be good with a 1.4 ohm coil at 4 to 4.2 volts...right? Where does the BB short circuit protection kick in?

Reason I ask, is I'm testing a 1.4ohm hollow core, vertical micro coil in a Protank and it's quite good, and want to try it out in the BB.
 

ThreeDJ16

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Can someone chime in with the max watts the BB can run at without risking damage?

The site says min 2.4 ohm carto. So 2.4 ohm carto at the max voltage of 5.5 equates to 12.6 watts.

So I should be good with a 1.4 ohm coil at 4 to 4.2 volts...right? Where does the BB short circuit protection kick in?

Reason I ask, is I'm testing a 1.4ohm hollow core, vertical micro coil in a Protank and it's quite good, and want to try it out in the BB.

My guess would be it is up to your battery. Doug stated his components are rated to 3amps a few posts back. So 1.4 ohm @ 4 volts would keep you slightly under 3amps (2.85a) at just over 11 watts. Forgive me if I am wrong, but didn't think there was an actual protection circuit inside the BB, that is just the component rating (on the firing transistor) and the protection comes from the battery.


beaten by my slow typing..haha!
 
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Big Screen D

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Your limit is the amps the board can handle and DD said 3A is it's limit, that's where you'll be with a 1.4 ohm coil and 4.2V. I use this calculator, you can put in any two values and it will give you the other two.

Watts - volts - amps - ohms conversion calculator

Thanks. The amp limit is what I wasn't sure of. Which begs another question lol. Does the BB have a 3amp overcurrent cutoff circuit?

edit to answer my own question. It has to since it has short circuit protection...
 

ThreeDJ16

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Thanks. The amp limit is what I wasn't sure of. Which begs another question lol. Does the BB have a 3amp overcurrent cutoff circuit?

edit to answer my own question. It has to since it has short circuit protection...

Was curious about the BB short circuit protection? My impression was the protection is just the one in the battery. Or are we just talking about the circuit/components are going to go out at some point above that threshold. Hate to see you go above that and something bad happen if it didn't, so wanted to clarify for myself and anyone else running rebuildables.

Freakn phone typing....argh...apologies in advance for screwups if it auto edits.
 
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Zanza

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Guys,

Drunk_J and myself have just finished the new forum for BB. There are different forums which should make it easier to access as well as categorize the information. It's running at my house, so the connection might go down every once in a while and such. It is running secured (HTTPS), with a self-signed certificate (Untrusted). I strongly believe that a website should be secured all of the time, and not just during checkout.

When you first go there, you will only see 1 forum (There are more forums after you register, trust me!). ;)


https://billetboxforums.dyndns.org/forum


Let me know if there might be other forums that might help out.

Thanks!!


Your forum works well, but you mad a typo in the adress, thus the 404 error appear.

Here it is corrected : https://billetboxforums.dyndns.org/forum
 

Doug Dino

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Quite sure I remember reading that in here somewhere Drunk. What it doesn't have is a low voltage cutoff, and depends on the batteries protection circuit to shut down when depleted.

I'm sure Doug will clarify this when he pops in here.

The board is designed to run on both 16340 or 123A's so that's why there is no low voltage cut off, the range would be different with 3.7 vs 3 volt cells and even brand and dropout rate... that was important to me in the design becasue if you were absolutely in need of power with no place to charge, you could just walk into a store and buy a set of 123a's for a camera and you'd be back to vape'n....

here is how and why it has a 3amp rating..

1st: The regulator chip-set in the board is rated for 3 amps... but it' won't hurt itself if you ask it to go over, and it will if its thermal protection say's it's ok to do so.. but that would only be briefly..

2nd: The board itself is copper on fiberglass and has traces (happy copper lines), the width of these traces dictate how many amps they are rated to carry... the output trace is rated for 3 amps... there is some safety margin in this spec.... but the spec is 3 amps.... any more would be a strain on the system... sure it can do it.. but that is not what it was designed to do.....

So we have to recommend 2.4ohms and higher, it's safe to say... we can't assume everyone who buys our toy knows how to calc power.... but a 1.8 ohm coil would fine for the system at all voltage levels on the dial 4~5.5..... Using anything lower than that will require doing the math to keep ya under 3amps....

example:


so lets say you have a 1.5ohm coil loaded up....

with the dial set to 4-volts, you'd be runnin' 2.6amps, burning 10.6wattttz ... so that's just fine

now set the dial to 4.5-V, now your at 3 amps, burning that coil at 13.5 watts,,,, still in spec, but danger zone if you don't know the math, so that's why "WE" can't say you can fire that coil...


now let's say you have a 1.8 ohm coil...


dial set to 5.5, well that's only a hair over 3amps... burning at almost 17watts.. still just about in spec.....

hope that helps, that is why we say 2.4 ohms and higher.... to keep the average joe or mary in check and give specs that keep the safety margins in play... There is more to the board than what i covered, but if your into electronics in the slightest.. taking that little puppy out and hacking it to do other tricks is not hard in the slightest... it was made to be easy to tinker with...
 
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sgenn99

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When I get my hands on that second BB, I think I will tinker, or more specifically, find a friend that knows about electronic stuff, to tinker.
Honestly, though - the beauty of this device is its simplicity. No worries about anything fancy, but the potential is there. I love my BB! For a carto user, it is the most bestest piece of vaping engineering I have seen or used. Prime carto, fill tank, and enjoy. Ahh!
 
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