The New HexOhm 3.0 has its own proprietary board that is rated for up to 30 amps and a capable of 180 watts. Some additional features we added include low voltage cutoff for battery protection, a 10 second cutoff timer and a master on/off switch.
As far as cosmetics go, all of its plastics have been upgraded from 3d printed material to injection molded ultem which houses our solid brass spring-loaded battery contacts. We also hid the magnets in the door and decided to make our own spring loaded 510.