Here is one I did lately. I used 2 18650's and an external charger. It's the same size as my parallel 14500's box.
I put in connector plates so that if I ever need to replace the batteries I can (I don't need to remove the batteries to charge)

Here it is before I added the switch/atomizer/charger-connector module. The module is from a AA box that I cut.

The finished product. My previous parallel 14500 box is on the right.


Should last a *very long time w/o having to charge. It has a little more ummf too.
I put in connector plates so that if I ever need to replace the batteries I can (I don't need to remove the batteries to charge)

Here it is before I added the switch/atomizer/charger-connector module. The module is from a AA box that I cut.

The finished product. My previous parallel 14500 box is on the right.


Should last a *very long time w/o having to charge. It has a little more ummf too.