MVP - Multi Vaping Power

[Videonut]

This mod works with USB power or a single 14500 3.7 v AA size battery.
Simply flip the SPDT switch on the under side to select USB or battery power. The other switch for lighting up the atomizer is a reset switch from a computer.
I wanted a USB passthrough but I also wanted some flexability in using it between the car and home. I also didn't want the unit to have a permanent USB cable.
I noticed I had a ton of USB chargers for the car and AC from a couple of cell phones so all I needed was a female connector to put in the MVP.
1 of the phones had a passthrough/splitter for the headphones and charger. Perfect!
I cut out 1 of the female USB connections which was attached to a PCB and trimmed it to fit the box. I cut out a slot for the connector at one end and drilled a hole at the other for the atomizer adapter I made.
I then pulled the battery connectors from the box. You only need the 2 single parts for the pos and neg of the battery.
I put a 1n4004 diode to reduce the voltage by .4-.4 volts on the spdt switch going to the pos USB connection. So when using the USB I get about 4.8 volts and I left the 3.7 volts from the battery untouched.
I'll post the pics now since it'd take me thousnads of words to descibe the process.

 

[BoiseMike]

Nice job! I like the flexibility. All-in-one.

 

[Videonut]

Thanks. It really is handy and puts out a ton of vapor.
I've found that when plugging into the wall, it's important that the wall plug is rated at 1 amp or more. I had 1 wall adapter that was .8 amps max and it didn't produce the power for a good hit. The car charger hookup I have works well, but a little less power than the wall plug. All USB hookups I've tried work perfectly.
I'm thinking of making another with my 4*AA box and using a standard adjustable power block with a round connector. Parts would be more readily available to the masses since not everyone has phone accesories to rip apart.
I forgot to mention that the atomizer connection is a truck tire valve, plastic tube from a gel pen and a ground down brass screw, I think the instructions are in Maddogs Magnum thread.