This site helped me choose my vapourizers so I thought i'd give a little something back and show you all how I am charging my Solo off of AA batteries for when i'm camping or at a cottage with no power.
If you do this do it at your own risk. I assume it voids your warranty though i'm not sure if they could tell.
A friend of mine has a nice island up North that has no running water or electricity. A week ago I became hooked on vapourizers and am now ruined on burning. The taste is nasty. So after becoming hooked on the Arizer Extreme Tower Q(The name generally involves 2 or 3 of those words) I picked up Arizer Solo. It's a great little unit. But i'm going to be without electricity for 5 days so needed to find a way to charge it without a car or ac power. So using a few parts I had laying around as well as $5 in parts I picked up today I put together a device to charge the solo using 12 AA or AAA batteries.
The voltage regulator has a small heatsink attached but in the 4 hour or so charge time it could heat up quite a bit. The regulator is outputting 12V but being fed 18V. Some of the excess will be lost as heat and over the charging cycle the it would gradually increase in temperature till it gets quite hot. The hotter it gets the lower it's efficiency it gets so you want to keep it as close to room temperature as possible. When I realized that the solo charges at 12V and the heatsink I had laying around had a fan that ran at 12V it seemed like a no brainer to add the option to turn on a fan incase the heatsink got too hot.
Parts:
-LM7812 voltage vegulator
-On/Off rocker switched with led indicator
-3 way rocker switch(standard on/off would have been better but I had this laying around)
-Power lined from broken breadboard
-Intel stock 3570k heatsink fan
-Coax DC power plug, 4mm OD and 1.7mm ID
-Heat shrink
-Protoyping electronics board
-Various lengths of red and black solid core wire
-Cardboard
-Cable Ties
-Superglue
Construction:
-Plan the layout of your prototype board. Check that you have planned all the connections right.
-Now double check it.
-Now triple check it. You do not want to put it all together only to find out you made a mistake.
-Solder the voltage regulator to the breadboard. If the regulators built in heat sink is flat on a table and pointing away from you, the pins from left to right are 1, 2, and 3
-Connect pin 1 to the bread board positive power line with the 3 way rocker switch between the two. On the rocker switch the wires should be connected to the middle prong and one of the sides.
-Connect pin 2 to the bread board negative power line. Also to negative line of the solo's plug(outer part of plug). To solder to the plug unscrew the black cap and expose the innards. Also to the negative line of the fan with the on/off rocker switch between the two.
-Connect pin 3 to the positive line of the fan. Also to the positive line of the solo's plug(inner part of plug)
Operation:
-Main switch: connects the battery pack to the voltage regulator feeding 12V to the Solo's plug
-Fan: only works if main power switch is on. This works as a sign that the device is on.
Notes:
-You could permanently attach the battery pack to the prototyping board. The reason I didn't is because AA/AAA combo battery packs were on sale so I wanted to be able to swap battery packs.
-I used 12 batteries making 18V. 10 batteries making 15V would likely be sufficient for this circuit.
-I shop at active surplus which sells used parts. This is why the parts were so cheap. It's also why the led indicator on the fan switch doesn't work.
I'll update here when I get back to let you all know how it went.