Anyone know what this is?
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With a AAA 1.5, I got 4.05v... Put a 14500(3.7) in it & it popped the led, didn't get a chance to read it. Give me a few minutes & I'll put something together that will stand up & find out what it will do.
Dang! that looks just like a booster circuit with the inductor and all. Bet it can't supply the amps we need though 
I'm gonna have to dig a bit deeper now... I do know that If I throw a 3.7v battery in these there's no light.. I thought i was just a spacer
hoog
I'm gonna have to dig a bit deeper now... I do know that If I throw a 3.7v battery in these there's no light.. I thought i was just a spacer hoog
Dang! that looks just like a booster circuit with the inductor and all. Bet it can't supply the amps we need though
hoog
I'm getting nothing through the + side anymore. I was trying to wire in a connector.
D*mn tiny, flimsy wires...Hoog, what are you seeing?
And Sci I blame the needing a Flashlight on you for bringing up there were new ones. That Green one is talking to me. 
Plus I can play with that thing you found in them as well when I get one. 8-o
Plus I can play with that thing you found in them as well when I get one. 8-o
And Sci I blame the needing a Flashlight on you for bringing up there were new ones. That Green one is talking to me.
Plus I can play with that thing you found in them as well when I get one. 8-o
LOL. I get blamed for everything I do...
I know for sure it's in the black one, don't have any of the others. I've got more of the black ones coming. Been looking for one that size, the board is a bonus.Got my replacements in(thanks for the spares, Hoog). I soldered some wire to where the LED legs are connected, the meter is across those wires. I soldered the wires from the battery box to the +/- of the backside of the circuit board. Here's a picture with a AA 1.5v(metered @ 1.48v).
Ok, it more than doubled that batteries voltage.
Now, here is a 14500(metered @ 4.08v)
It did not double, but still an increase.
Ok, it's been a while since I opened an electronics book, so can one of you electronic gurus explain what is going on here? Why the double with the AA @ 1.48, but only a slight increase with the 14500 @ 4.08? And, how can we use this to our advantage?
I soldered some wire to where the LED legs are connected, the meter is across those wires. I soldered the wires from the battery box to the +/- of the backside of the circuit board. Here's a picture with a AA 1.5v(metered @ 1.48v).
Ok, it more than doubled that batteries voltage.
Now, here is a 14500(metered @ 4.08v)
It did not double, but still an increase.
Ok, it's been a while since I opened an electronics book, so can one of you electronic gurus explain what is going on here? Why the double with the AA @ 1.48, but only a slight increase with the 14500 @ 4.08? And, how can we use this to our advantage?
I'm no expert either but it's based on the frequency.. And the size of the coil controls the amps along with the output on the chip..
But still cool work.. I haven't had tome to fiddle yet..
But still cool work.. I haven't had tome to fiddle yet..
Looking at the multi-meter... You used a 1.2v alkaline battery first.
Then a Li-ion battery rated at 3.6 with 900mAh. Is this battery fully charged and fresh or slightly drained?
Interesting. Maybe it sort of just makes it ramp up by 1.2v no matter what battery is put on? This board could be seeing 4 batteries rated at 1.2v? where in reality, the 3.6v might be the "3" 1.2v batteries drained a bit? Does anyone get what I just typed?
Then a Li-ion battery rated at 3.6 with 900mAh. Is this battery fully charged and fresh or slightly drained?
Interesting. Maybe it sort of just makes it ramp up by 1.2v no matter what battery is put on? This board could be seeing 4 batteries rated at 1.2v? where in reality, the 3.6v might be the "3" 1.2v batteries drained a bit? Does anyone get what I just typed?
It had a little drain on it. A freshly charged one has around 4.2v, this one metered @ 4.08. I've got the board on a breadboard, but have been sidetracked/busy & haven't been able to really put it through the paces.
I understood what you typed.
I just tried a (fresh)9v battery & lost a little voltage. 9.26v->9.14v. Something on the board got really hot pretty quick & something made a crackling sound.8-o I may have fried that one.The above pics were showing the circuit tested without a load. I did hook up a battery connector & atty to see if it would vape(1.2v). I metered across the battery connector and it was getting the 4+v, but not producing enough current to produce vapor. I think the current was around 280mA.
I really wish there was a way to use this circuit for our needs. I'd love to be able to pop in a 2500mAh 1.2v & vape.
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