The answer comes down to cost. LiFePO4 batteries have enough capacity that they can be held at 80% and still beat SLA on capacity. The problem is that LFP wins on gravimetric and volumetric energy density; two metrics that aren’t particularly important in the context of a UPS. It’s a large brick that sits on the floor.

Lots of replies, but not a lot of product recommendations.

Netgear GS105 5-port Gigabit Ethernet Switch - $40

TP-Link TL-SG105S 5-port Gigabit Ethernet Switch - $20

There’s no particular reason to choose one over the other. The TP-Link is cheaper, but some people like the darker color of the Netgear. Not sure it’s worth twice the cost though.