A challenge for the mod experts ;)

[warp1900]

So here is a challenge for the mod "experts"...

I purchased this little 4.5V wall wart from Radio Sharks and did my usual mod to it, so i cut off the cable and added an RCA connector to it so it would be compatible with my pass-through mods.

So the setup is wall wart to my RCA pass-through with either an 801 or a 901 atty.

The challenge is for you to explain why this little thing is the biggest vaper of all i have tried so far.

It is the biggest hitter of all, even the 6V mods. When i compare it to freshly charged batteries 2 x 3V or 1 x 3.7v there is NO comparison, this thing is crazy good!

The wall wart i am referring to is only sold at radio sharks, not online only in stores, and they have a limited quantity if any at all. It is only $3.97!! and just so you know, i checked online for availability at my nearest store and printed out the web page just in case.
When i arrived at the store the guy told me they didn't have it, so i told him the website lists they DO have it, so he checked on their computer and there it was.
So he walked to the back room and came out telling me he didn't understand why but he couldn't find it. So i insisted this time trying to look a little angry and he went back into that room and came out with a new shinny 4.5v wall wart!
If you are going to get one, make sure you both check the website for availability at your store and also print out a hard copy of the website so they can not play dumb, (they love to do that for some reason).

Specs are 4.5 volts, 1,600 ma and it's white. here is the link.

4.5V/1600mA AC-to-DC Power Adapter - RadioShack.com

Hope someone can figure this out since i can't and i also have another 5V wall wart but at 1,000 ma and it does not vape the same.
not even close.
There are other 5 radio sharks stores less than 10 miles from me and i will go and buy each one on every store LOL.(seems they only have one at each).

 

[cddz]

So here is a challenge for the mod "experts"...

I purchased this little 4.5V wall wart from Radio Sharks and did my usual mod to it, so i cut off the cable and added an RCA connector to it so it would be compatible with my pass-through mods.

So the setup is wall wart to my RCA pass-through with either an 801 or a 901 atty.

The challenge is for you to explain why this little thing is the biggest vaper of all i have tried so far.

It is the biggest hitter of all, even the 6V mods. When i compare it to freshly charged batteries 2 x 3V or 1 x 3.7v there is NO comparison, this thing is crazy good!

The wall wart i am referring to is only sold at radio sharks, not online only in stores, and they have a limited quantity if any at all. It is only $3.97!! and just so you know, i checked online for availability at my nearest store and printed out the web page just in case.
When i arrived at the store the guy told me they didn't have it, so i told him the website lists they DO have it, so he checked on their computer and there it was.
So he walked to the back room and came out telling me he didn't understand why but he couldn't find it. So i insisted this time trying to look a little angry and he went back into that room and came out with a new shinny 4.5v wall wart!
If you are going to get one, make sure you both check the website for availability at your store and also print out a hard copy of the website so they can not play dumb, (they love to do that for some reason).

Specs are 4.5 volts, 1,600 ma and it's white. here is the link.

4.5V/1600mA AC-to-DC Power Adapter - RadioShack.com

Hope someone can figure this out since i can't and i also have another 5V wall wart but at 1,000 ma and it does not vape the same.
not even close.
There are other 5 radio sharks stores less than 10 miles from me and i will go and buy each one on every store LOL.(seems they only have one at each).

The reason is simple really. 1600mA = 1.6 amp. available. The 901/801 resistance in ohms is 3.5. At 4.5 volts this requires 1.3 amp to be full. You are operating at aprox 5.8 watts. With the 1000mA model you are only putting out 1A which is less than what it needs. Hope this helps

 

[Cisco]

Warp,

There is no voltage drop when you vape off line voltage(120v) transformers. that little wall pack will give you all the power you need every time you hit it without loss of power to the atty. Its one of the reasons a wall powered USB hub will deliver better performance when a non-powered.


Cisco...

 

[NekoGurrl]

What you are seeing is the difference in power (Watts), this is a function of both the voltage and amperage rating.

V x I = W (Volts x Amperage = Watts)

so 4.5 v x 1.6 amps = 7.2 watts, the other you had was 5 v x 1 amp = 5 watts. This is the same level we would see at full power on a USB port, although the spec calls for .5 amps.

I have noticed the same going between different battery sizes, a 18650 will provide a higher wattage draw than a 10440, and produces much better vapor production for me.

May have to stop at RShack again today, just got back with a bag of RCA connectors. Have a lot of crazy ideas, and not many connectors.

 

[warp1900]

Sure helps both pieces of info. cddz and Cisco, thanx.

That explains why it blew the top off my head when i first hit it.

The funny thing is i had been looking all over internet for a similar 4.5v higher than 1,500Ah wall wart, and they seem to have dissapeared form the face of earth. No one makes them, or someone is buying them all. Not on e-bay, DX, or any other established electronics websites.
That is why i am going on a Radio Shark tour de force to get 'em all.

 

[warp1900]

What you are seeing is the difference in power (Watts), this is a function of both the voltage and amperage rating.

V x I = W (Volts x Amperage = Watts)

so 4.5 v x 1.6 amps = 7.2 watts, the other you had was 5 v x 1 amp = 5 watts. This is the same level we would see at full power on a USB port, although the spec calls for .5 amps.

I have noticed the same going between different battery sizes, a 18650 will provide a higher wattage draw than a 10440, and produces much better vapor production for me.

May have to stop at RShack again today, just got back with a bag of RCA connectors. Have a lot of crazy ideas, and not many connectors.

Awesome NekoGurrl, thank you for the extended explanation, makes perfect sense.
Not so sure about the 18650, seems to be the same as a 14500 to me.

Anyways...why do you know all this? (just curious)

Remember to print a hard copy of the RS page where it shows they have it available.

 

[framitz]

I went out immediately and got the only one my local RS had.

 

[geeker]

WTH is a wall wart?

 

[Cisco]

What you are seeing is the difference in power (Watts), this is a function of both the voltage and amperage rating.

V x I = W (Volts x Amperage = Watts)

so 4.5 v x 1.6 amps = 7.2 watts, the other you had was 5 v x 1 amp = 5 watts. This is the same level we would see at full power on a USB port, although the spec calls for .5 amps.

I have noticed the same going between different battery sizes, a 18650 will provide a higher wattage draw than a 10440, and produces much better vapor production for me.

May have to stop at RShack again today, just got back with a bag of RCA connectors. Have a lot of crazy ideas, and not many connectors.

Hey Neko,

I am sorry but I have to disagree with you on the watts thingy. The wall pack has the ability to output 1600mA but that's not what the atty will take when vaping. Ohms law dictates this based on the voltage to the atty and the ohm rating of the atty. The pack is 4.5v and the atty has an ohm rating of 3.5, so 4.5 divided by 3.5 = 1.28amps. 1.28amps=5.76 watts. The key is there is no voltage drop which means there is no amp drop, the atty is getting its max power every time without any power loss.

I have the same wall pack in a 6v model, with the same 3.5ohm rating on the atty this pack will deliver 1.71 amps or 10.26watts, thats almost twice the wattage although only a small increase in amps/voltage.

Cisco...

 

[warp1900]

So, what do you guys do for a living is my next question (if i may ask), i am a music producer, i know a lot about plugging in instruments and audio equipment, I know how to match ohms on speakers and stuff like that, but never really messed with all this advanced electric/electronic information, so it's great to have some friends here knowing about this.
Having people in the forum from such different walks of life is what makes it great.

Thank you all

 

[warp1900]

WTH is a wall wart?

A power supply that you plug into the wall socket, hehe

That is why they call it wall wart.

 

[warp1900]

I went out immediately and got the only one my local RS had.

LOL

 

[framitz]

So, what do you guys do for a living is my next question (if i may ask), i am a music producer, i know a lot about plugging in instruments and audio equipment, I know how to match ohms on speakers and stuff like that, but never really messed with all this advanced electric/electronic information, so it's great to have some friends here knowing about this.
Having people in the forum from such different walks of life is what makes it great.

Thank you all

I'm an electronics technician since 1974, but worked the last 13 years in IT, most recently as a senior network security analyst - laid off 23 Dec, 08.

 

[kinabaloo]

A power supply rating that mentions current is the maximum it can comfortably supply before getting hot / losing voltage. So if an atty tries to draw 1.6A it should keep a voltage close to spec without dropping much.

Remember that current, in most cases, depends on the resistance and the voltage.
A power supply behaves much like a battery in this respect (having an 'internal resistance') such that the voltage will dip when current drawn is greater than the rated max. This is not a sudden effect, just where it becomes noticeable and the internal heating presents a worry.

 

[warp1900]

I'm an electronics technician since 1974, but worked the last 13 years in IT, most recently as a senior network security analyst - laid off 23 Dec, 08.

So yeah, you sure know your stuff .
Not that i doubted it, i just was curious about the backgrounds of all you guys and gals.

Sorry about you being laid off framitz, lets hope for better times for all soon.

 

[NekoGurrl]

Hey Neko,

I am sorry but I have to disagree with you on the watts thingy. The wall pack has the ability to output 1600mA but that's not what the atty will take when vaping. Ohms law dictates this based on the voltage to the atty and the ohm rating of the atty. The pack is 4.5v and the atty has an ohm rating of 3.5, so 4.5 divided by 3.5 = 1.28amps. 1.28amps=5.76 watts. The key is there is no voltage drop which means there is no amp drop, the atty is getting its max power every time without any power loss.

I have the same wall pack in a 6v model, with the same 3.5ohm rating on the atty this pack will deliver 1.71 amps or 10.26watts, thats almost twice the wattage although only a small increase in amps/voltage.

Cisco...

You are right, the calculation I remembered was for potential. And since the 4.5 volt wall wart can deliver up to 1.6 amps it can easily handle the current draw of the atomizer.

But doesn't it also mean that if you have a 5v .5 amp source, with a 3.5 ohm resistance in the atomizer. 5/3.5 = 1.43 amps, which is above the specifications of the power source. Isn't this the situation that many people see on their PC's with a USB passthru.

It's been a long time since my electronics classes in tech school, and the last few years I've spent with my nose in systems, software and database management. Guess I'm a bit rusty.

 

[kinabaloo]

You are right, the calculation I remembered was for potential. And since the 4.5 volt wall wart can deliver up to 1.6 amps it can easily handle the current draw of the atomizer.

But doesn't it also mean that if you have a 5v .5 amp source, with a 3.5 ohm resistance in the atomizer. 5/3.5 = 1.43 amps, which is above the specifications of the power source. Isn't this the situation that many people see on their PC's with a USB passthru.

It's been a long time since my electronics classes in tech school, and the last few years I've spent with my nose in systems, software and database management. Guess I'm a bit rusty.

Yes, the voltage will drop as it begins to melt. It cannot actually put out 1.43A, the voltage gets divided between itself and the output. The power shoots up (IxIxR) and the supply gets hot.

SQL, CMS, MVC, ... sounds like me

 

[NekoGurrl]

SQL, CMS, MVC, ... sounds like me

Gotta go where the jobs are.

Back in the 80's I was doing board level repairs. Those days are long gone, along with my eyesight. I spent most of my time working at TTL logic levels, analyzing logic gates and doing trace repairs. Then surface mount became the standard. Now it's all SQL and Python scripting...

 

[warp1900]

Gotta go where the jobs are.

Back in the 80's I was doing board level repairs. Those days are long gone, along with my eyesight. I spent most of my time working at TTL logic levels, analyzing logic gates and doing trace repairs. Then surface mount became the standard. Now it's all SQL and Python scripting...

I didn't know nekos could be geeks also

 

[kinabaloo]

I didn't know nekos could be geeks also

Who you calling a geek?!

8-o

I don't know any Python