APC do a really crappy small one for telecoms cabinets, but none for serversI 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.
Thanks for the update! Good luck with the next server update. Moving services is always stressful :(
One thing I think would be a good addition to your list (maybe step 3 or 4), would be to use a network-wide ad/tracker blocker for your house, as that would protect everyone using your network, as well as devices that you may not be able to install an ad blocker on.
I use PiHole at my gf’s house (https://pi-hole.net/), and Technitium DNS (https://infosec.exchange/@shreyasonline) at my own house, with some generic block lists.
Both are easy to set up, work really well and are very stable.