Quad 18650 Box Mod

thingiverse

I'm really intimidated by this device. Wired it to accommodate two parallel banks of 2 high-capacity lithium-ion batteries rated at 18650s. The perfectly drilled holes easily fit a standard 22mm varitube 510 Connection, as well as a convenient e-switch 12mm domed push button with an oversized 17.5mm diameter dome. Powered by a pair of rechargeable 2500mah batteries, this device operates indefinitely.