I suppose it's a step in the right direction, but there's a good chance that the real reason they added this charging port was to save on battery size and cost. After recording the video I discovered that there were four tiny components under the silicone sleeve around the USB-C charge connector. A decoupling capacitor, two resistors for enabling USB-C charging and a mysterious diode type component with an unreadable number. For the technically inclined, the wires on the liquid reservoir could be extended slightly to facilitate refilling by wiggling the mouthpiece off and sliding out the reservoir to get the cap off for soaking in some more fruity fog juice. Care would have to be taken to avoid running the reservoir dry and burning the wick. The functionality of the chip inside the pressure sensor case is quite high. It not only acts as a current limited charger with voltage cut-off, but also monitors the pressure switch and times the heater activation to avoid excessive run time due to failure or repeated false triggering of the sensor. It can switch high current, possibly with thermal protection. It ramps the LED up with pulse width modulation, and can detect a low battery. It may also detect a shorted heater or associated wiring. Yes I'm being cryptic by saying addiction-stix. The platform doesn't discriminate between technical videos and the ones promoting their use. This content is purely a technical exploration of the circuitry. I specifically avoid using intrusive mid-run video adverts for a more relaxing viewing experience. If you enjoy these videos you can help support the channel with a dollar or two for coffee, cookies and random gadgets for disassembly at:- https://www.patreon.com/bigclive Patreon supporters get early access to advert-free videos as they are made, and also regular live streams. The Patreon support keeps the channel independent of YouTube's advertising algorithms allowing it to be a bit more dangerous and naughty. Other contribution options are available at:- http://www.bigclive.com/coffee.htm #ElectronicsCreators