I prefer to assume he's lugging a 12U mini relay rack around with him, including a UPS and cellular fallback for networking, so he can run an Android VM and use it as his cell phone.

See also, this atomic clock wristwatch: http://leapsecond.com/pages/atomic-bill/

"My phone is a server now" - OP's choice is a subtle one.

By saying "my server is now ..." implies a change of server platform to a phone but not where it came from.

Your offering: "my phone is a server now" implies a change of phone usage but does not indicate where the server came from.

The article itself tells all.

Some newer phones support bypass charging, which powers the phone directly instead of continuously cycling the battery. Mine doesn't support that, unfortunately, so I've limited charging to 80% to reduce battery stress.

> or is it fine to just limit the charging to 80%

LiPo batteries will fail over time if left fully charged. If you don't need the battery it's best to keep it somewhere around 40%. If 80% is the only option, that's usually good enough.

The primary failure mode starts when the cells are charged near their maximum voltage and kept there.

Most phones won't boot without the battery. Obvious workaround is to connect a power supply (and large cap) directly to the BMS, but in my experience most phones will shut themselves down when they think they've drawn more than the capacity of their battery, even if the voltage is still high. You can sometimes get around that by rebooting the device every couple of hours (and there might be a software/firmware fix in some cases?), but it's a lot less annoying to just accept a small risk of a house fire.

Afaik mobile electronics’ power circuitry is designed so that power goes straight from charging port to the processor, without constantly charging/discharging the battery, once charging is complete. Unless the system suddenly draws a lot of power (more than the charger is supplying) - which is unlikely in a smartphone.

That's what I thought when I read this. It will probably destroy this battery very quickly.

But in other hand, it is probably a pain in the ass to remove the battery and do some workarounds to make sure the phone correctly behaves without it.

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