Secure connection failed :(

Yes, quite: https://history.stackexchange.com/questions/23785/what-did-richelieu-mean-by-his-six-lines-quote

Absolutely. In a previous company, we migrated from on-site MS Exchange to Google Mail (ugh). Apart from it being a crap experience (it was a new service), and feeling like we were beta testers as things kept changing daily, so writing training material was a PITA, once there was an outage, and even though we had ~10K users on it, they basically said “get in line” when we were chasing for updates etc even though we were a paying customer!

Fuck them.

Not sure how Porn = Terrorism. Sounds like mission creep to me… Oh well, I guess it makes a change from using Anti-Terror laws to stop people putting the wrong things in wheelie bins: https://www.telegraph.co.uk/news/uknews/3333366/Half-of-councils-use-anti-terror-laws-to-spy-on-bin-crimes.html

APC do a really crappy small one for telecoms cabinets, but none for servers

I wonder if the lower discharge current capability of LFP batteries is why? That’s the one thing I’ve read fairly consistently about them is that they can’t supply the same high current as lead acids but are otherwise superior in every way. Now that you mention it, the only place I’ve ever really seen LFP UPSs for servers is in the big, central UPSs where they can run batteries in series for a much higher voltage.

I don’t think so. Cheaper batteries have that problem, but a decent brand does not. Check out this one: https://www.powertechsystems.eu/home/products/48v-lithium-ion-battery-pack/48v-105ah-5-38kwh-lithium-ion-battery-pack-powerbrick/ I bought one for my house, and have a 5KW inverter connected to it. Its specifications say that can do 120A drain continuously. I have used it to boil my 3KW kettle a few times in one day (but not often - I usually use the power for other things), and it has been fine.

e.g. most of the LFP UPSs I see max out at 1000 VA where 1500 is more typical for lead-acid UPSs.

That’s just a limitation of the product, not the technology.

There’s an old thread about someone doing it here: https://diysolarforum.com/threads/replace-apc-ups-sla-batteries-with-lithium.25424/ but sadly he doesn’t give any details, or any updates.

It’s wierd. APC do a really crappy small one for telecoms cabinets, but none for servers. I would love to replace my APC batteries with lithium ones.

Let us know what ones you chose in the end.