simple 18650 box mod (dual)

Print The double 18650 holder and use some bolts and nuts for battery contacts. cable shoes (or copper wire) to connect it to the button and 510 connector. The lid is slide in and the tolerance is 1% if you need a bigger or larger tolerance just scale it. use superglue and glue the battery holder into the box mod AFTER YOU HAVE PLACED THE BUTTON AND CONNECTORS! make sure there is space for inserting the batteries.. the button i used is a large 22mm automotive push-button(from a local biltema) rated for 20Amps. the cells must be protected or else you must add a fuse or something else. for safety when not using your device you should remove your rba/rda so that it doesnt fire in your pocket or your bag. I used my cells in parallel because they had very low drain. my coil resistance is 0.75ohms. you could add a mosfet and switch inside the mod for extra safety(you wont have to remove your rba/rda all the time for safety)