No actually, it is a Fairphone after all.
In short, far phone is the phone which powers far computer which is in turn served from https://far.computer
The name likely comes from “fairphone” with the “i” scraped off - see the photo: https://far.computer/
What I cant figure out is how to detect power usage from the PMIC when in that configuration. ie seems to still assume power draw happens via a battery.
Accept, not what the power supply can supply. Cell phones aren't being made with massive laptop-sized 100W accepting circuitry.
On the other hand, I have seen cheap 18650s spontaneously start smoking even when they weren’t plugged in to anything…
I doubt the traffic hitting it would be sufficient to drain the battery overnight.
Over years, this can accumulate enough charging cycles so battery gets worn down.. And old batteries have even higher self-discharge, so the cycle accelerates. If you are lucky, the battery lasts long enough. If you are unlucky, you end up with "spicy pillow". If you are super unlucky, and charger's temperature sensor fails (or was never installed), or battery gets punctured - you got a fire.
As, somehow it managed to turn all four cells in the pack into pillows. Which indicates a shockingly flawed balancing system
On older devices the controller might make some assumptions that holds true with a new battery, but very much doesn't with an old and worn one.
My Macs have all been sensible about it, but I've seen Windows machines with batteries that just died from being plugged in all the time not even 10 years ago. Even if that specific instance was just a bad battery and not due to a charge controller, I have no faith in Random Windows or Android OEM Number 582 doing this correctly.
For devices that are fixed, I'd prefer to eliminate the potential of there even being a problem in the first place.
Nowadays if I want to leave a device plugged in I crack it open, remove the battery cell, solder on a power supply and capacitor, and then do the nonsense with rooted Android to keep it from shutting itself down.
What roasts the lifetime of my laptop batteries is compiling with gentoo, but again never an issue with catastrophic failure and I have 20+ years of experience with that as well.
Ostensibly they contain charge controllers and temperature sensors, yet they're unable to prevent this outcome when the ambient temperature exceeds 110F day after day while the device stays on in a hot attic w/usb-c pd connected.
Fortunately I haven't had any burst into flames yet, but after a few years of seeing this pattern repeatedly I stopped deploying anything containing LiPo batteries at the property.
YMMV - but IMHO it's prudent to exclude these batteries from such unattended, powered 24x7 devices.
I'd guess it would have more to do with heat, though.
e.g.: MacBooks discharge the battery down to 80% by using the battery even if it's plugged in by citing "Rarely used battery", and keep the battery at 80% for at least half a day, then charge it again.
Li-ion is an adversarial chemistry. You need to take care of it or the battery bites back by puffing up or losing capacity very fast, or becoming an indoor firework.