This mod is an extremely simple and cheap way to make a 5 volt mod that uses 2 3.7 volt batteries. Instead of using a resistor or a voltage regulator, this mod uses diodes to drop the required voltage. If someone else already thought of this, I apologize in advance.
Diodes drop a fixed amount of voltage when forward biased (current flows). The amount depends upon the type of diode, ranging from .5 to .9 volts generally. I bought some diodes rated for 3 amps from Radio Shack and determined that they drop .82 volts each. Three of these in series drop 2.46 volts. So, if used in a two battery setup, whereby the batteries are 3.7 volts (a total of 7.4 volts), we can expect about 4.94 volts at the atomizer.
Here you can see the general layout. Someone with better fingers and eyes than mine could squeeze this into a 3xAA battery box. I needed the 4xAA.
You cant see it well here, but the black wire, coming from the negative side of the battery is soldered to the diode in the lower left corner of the box. Also, note that diodes have polarity. The white band on the diode must be connected to the negative side of the battery. Otherwise the diodes will be reverse biased and no current will flow (it wont be a workin').
And, here is the cheesy schematic I drew up.
Note that the 27x-xxx part numbers are radio shack part numbers. The diodes come two to a bag, so you will need two bags.
The rest of the construction is standard fare for a box mod. I used hot glue to affix the atty connector, in this case a 510 which I got along with the batteries from madvapes.
Edit: Forgot to mention that if you have a 6V mod (two 3V batteries) then you could use just one of these diodes to reduce the voltage to 5.2 volts.
Diodes drop a fixed amount of voltage when forward biased (current flows). The amount depends upon the type of diode, ranging from .5 to .9 volts generally. I bought some diodes rated for 3 amps from Radio Shack and determined that they drop .82 volts each. Three of these in series drop 2.46 volts. So, if used in a two battery setup, whereby the batteries are 3.7 volts (a total of 7.4 volts), we can expect about 4.94 volts at the atomizer.
Here you can see the general layout. Someone with better fingers and eyes than mine could squeeze this into a 3xAA battery box. I needed the 4xAA.

And, here is the cheesy schematic I drew up.

Note that the 27x-xxx part numbers are radio shack part numbers. The diodes come two to a bag, so you will need two bags.
The rest of the construction is standard fare for a box mod. I used hot glue to affix the atty connector, in this case a 510 which I got along with the batteries from madvapes.
Edit: Forgot to mention that if you have a 6V mod (two 3V batteries) then you could use just one of these diodes to reduce the voltage to 5.2 volts.

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