Well asshat, I asked you to explain your box mod. I E what type of atty and batteries you were using.
I decided I would rather have two 3.7v boxes, then one 5v since im going to be using them in public.
I bought a LR 510 and a regular 510 becuase the LR atty was cheaper.
I ended up buying some trust fire 14500 which where the same you used in your 5v box.
BTW http://www.healthcabin.net/ is a fucking awesome china dealer cheap prices.
I was gonna make a diy thread when my shit comes in.
Listen here you motherfucker
I havent tried any LR's yet on 3.7v. I went nuts one day and bought like 25 regular atty's and a ton of nic (2x 60ml 100mg/ml) in other words about 1-2 years worth of nic. But I digress....
www.madvapes.com has a shit-ton of mod parts. You can get an atty connector from a dead 510 battery or healthcabin.net or madvapes.com.
I've got several 5v mods now. You can use the standard 3-prong 5v regulator from radio shack or madvapes.com have 4-prong 5v regulators with a 'control pin' that allow you to use microswitches. If you use the standard 3-prong RS regulator you have to use a heavy-dutyish button. I'm going to be lowering my nic next batch (18mg/ml now).
dealextreme.com is the best place for batteries. ~$5 for a pair of 14500's and like $6 for a charger. I bought a little micro-bong from there for $5 and a cool fire-starter thing for another $5.
Here's some DIY shit threads
http://www.vapersforum.com/forumdisplay.php?f=15