Custom Charging Mod ?'s

[Skyway]

I am working on a VV mod and I am going to use 2 18350's. In the box I am going to use might prove a little painful if I want to take it apart every time I want to charge it. I was going to use a 510 connector on the end of it to charge so I can just screw on a 510 usb charger. The part that is mostly in question is this. Is there a way to hook up a standard 510 usb charger to charge 2 3.7v batteries that are in series with each other without too much customization? I would expect it not to work trying to charge them in series with each other, effectively both of them being a combined 7.4v.
Might there be a way to wire the connector in some kind of paralleled serial connection to charge both 3.7v batteries at the same time? Thinking this might be a lost cause.. Figured I would ask though.

 

[retird]

You would need to design a switching mechanism to switch the batteries from series to parallel while charging....basically charging in parallel...vaping in series....

 

[VWFringe]

would they fit in a C cell battery box? I think 18500's will if you dremel out the box inside - would allow you to pop them in and out easier, but little space for electricals...? I dunno what i'm talkin about but i feel for ya'
mounting batteries sucks eggs
(we need options for li-ions like AA boxes)

EDIT: here's a pic of 18450's in a C cell battery box from madvapes

 

[Skyway]

I changed some things up and found a way to get the box together without making things too difficult.
The C box is too bulky for my tastes. I created one for madvapes awhile back for fun. They wanted to me to make a Cbox version of my pump mod I was making for them.
I am using the coffin box that madvapes has on their site for my latest one. As soon as I can fix my uploading of images, I will post some pics.

 

[Skyway]

Here is the C box mod I made. It was more of a test to see where the battery was going to go and where the pump was going to go. I don't really use this box but I made it so you can use any atomizer you want. It has all 3 connections. Was mostly created for a coffee table vape box for the house.

Here are some pics of my new VV Coffin box.

Essentially I put 2 of them together. Ignore the hot glue holding it. That is just for testing to see how everything goes over the next couple of days.

 

[VWFringe]

C box looks big, thanks for that picture

do the coffins feel ok in the hand, they look small enough
i'd like to see inside sometime

here is a link to an ebay charging box for 4 * 18650's - only thinking you may be able to use the board, but I don't know

http://cgi.ebay.com/18650-battery-box-Intelligent-charge-protection-/120719198600?pt=LH_DefaultDomain_0&hash=item1c1b6cc988#ht_1988wt_905


won't let me save the pic or url to it, looks like a 4*AA box but for 18650's

 

[Skyway]

That sure does look like a nice board. Actually pretty wide, not even sure if it would fit into the coffin box if those are in fact 18650's. Pretty good price for what it is capable of doing.