DSE905 broken, Need modder's advice

[Bebblebrox]

I've had continuing bad luck with the 905 circuitry. My first one I accidentally ripped wires on it, so that was a physical break, but the next two have both exhibited the same behavior of the button/timer/whatever that circuit board is basically dying. Light will go on and stay on, but no power is pushed to the atomizer

I have 4 rechargeable batteries, I have the charger, and I now have 2 complete (but not working) battery housings.

What I'd like to do is be able to at least use my batteries, charger, and atomizer. I'm wondering if with this series of atomizer, can I just hard-wire in a switch and maybe even keep using the same case? As in, does the circuitry even do anything other than a switch with a timer?

 

[Bebblebrox]

I want to be clear here, I'm not asking for help with the broken device, because I KNOW what's broken

I'm just asking for expert opinion on the best use of what I have

I can take this thing apart fine, I'm fine with soldering. I just don't know if I need to use resistors or what. The black "button box" is pretty small for a resistor, which is why I wonder if I even need any regulation for this particular model; i.e. maybe it's build FOR this battery

 

[Bebblebrox]

Wait, is this all I need??

http://img3.fotos-hochladen.net/uploads/schalter227bhf6xek.jpg

 

[Bebblebrox]

Blech I'm still sort of stuck because even though I know how to solder I don't know electronics, as in what resistors to stick in there with what batteries

 

[stouchon]

I doubt the 905 has the room for that mosfet. Your batteries should be fine to power the atomizer without any resistors. You would need a resistor for any led's you would want. Finding a switch that is small enough to fit in a 905 case might be tough with out using a mosfet, the circuitry that is damaged has a mosfet built in as well as battery protection. The batteries you have are probably not protected. Without protection you run the risk of it exploding in your face.

I would recommend biting the bullet and buying a new 905 unit if you want to be able to use your batteries. Or look into other options.

 

[Bebblebrox]

Sorry, I more mean that configuration with the resistors than the actual pieces, since that's not anywhere near my 900 battery.

The only reason I'm considering finding a solution is that these keep breaking on me after warranty time. They're only $30ish to get a case, and it comes with an Atty.

What kind of protection do the batteries need in a setup like this? Totally ignorant question, I know

For the switch, that's not too hard to figure out, if I'm going to skip the whole led thing and basically just straight-wire it. Shoot I can just duct tape the switch to the bottom ;-)

 

[Bebblebrox]

Ahhh, answered my own question

I'm using 14500s with built in protection

So in theory, I can just put a switch in...right?

 

[stouchon]

Yeah, but you would need to use a switch rated at 3 amps or a mechanical switch. A smaller switch would require a mosfet like in the diagram from above (so you don't burn it out).

 

[Bebblebrox]

Ahh ok

I have verified that a mechanical switch will work. Last night I went to Radio Shack and got the wrong switch, so just to make sure the wiring was all right before the switch I put the wires together and BAM I finally have GOOD smoke again instead of the crappy pen batteries I've been forced to use.

I did manage to get a 3Amp rated switch, just got "normally closed". Live and learn.

This thing is going to turn out looking like a Frankenstein, because the 3Amp switches aren't exactly dainty...haha

Oh well.

I have 2 bodies to play with. I figure I'll get one working any way I can, then worry about making the other look nice after that.

 

[stouchon]

Glad you got it going, good luck with the next one.

Here is some pictures of a 14500 box I just finished. I used the mosfet chip, you posted the diagram a few posts ago, for the touch sensor.

IMAG0065.jpg by Travlincablguy, on Flickr


IMAG0066.jpg by Travlincablguy, on Flickr

 

[Bebblebrox]

I saw a project box at Radio Shack and that was my first thought, just make my own

However, i have zero ready access to small gauge wire, my solder gun needs a smaller tip....

Even with those problems I was wandering around the house looking for things I could stick an atomizer in haha

 

[Bebblebrox]

We're in business! It's really, really bad looking....lol

Mechanical switch on the outside that's just floating there for all intents and purposes, only held with electrical tape. While I was soldering the case-attached wire, I was holding it with steel wool and ended up gouging the paint, so the whole thing is also covered with electrical tape now.

Ahh well, it vapes!

 

[stouchon]

Be careful with that box from radio shack. I bought one but you have to have the screw in it to keep it together. Madvapes has plenty that stay together without needing the screw. That and if you need some wire just tear apart an old usb cable.

 

[Bebblebrox]

Ahh no, sorry, that was confusing

I am using the metal DSE905 screw-together case. Basically took it apart and removed the tiny switch and circuit board and mounted a manual switch on the outside

well, I say "mounted"...it's taped ;-)

 

[WillyB]

Yeah, but you would need to use a switch rated at 3 amps or a mechanical switch. A smaller switch would require a mosfet like in the diagram from above (so you don't burn it out).

That's not exactly true. It's a 901 device it's only pulling about 1A.

I usually advise against these little switches (on principal), but many, many folks have reported good results with them at considerably higher than 1A draws.

SPST 0.5-Amp Momentary Switch (2-Pack) - RadioShack.com

 

[stouchon]

I have not used those on PV's, but I did wire one up for my garage door opener on my motorcycle. Burned out both in the package (in about two months) and my door opener uses one button cell. I won't ever use them again.