Suggestions for Non-Lead Acid Replacement for APC SMT1500C UPS? (Preferably Rackmount)

What risk? UPS batteries are of the sealed absorbed glass mat type. They don’t outgas or leak like flooded cells in a car battery.

@GTwannabe ,

See: APC SMX1500RM2UNC Noise Level Suitable for Bedroom Office?

A couple of very concerned people over there seem convinced I am risking my health by sleeping in the same room with a UPS using SLA batteries.

Given that the other position is sealed, not dangerous unless they catch on fire, I’m pretty confused right now.

I mean, a lithium fire isn’t awesome, either.

@ozlay I have, somehow, 3 UPSes in this room. I want to decommission at least one of them. My current plan is to get a brand new one for the rack to replace the large APC I currently have, and offline one of the floor models.

I may be able to have the new UPS do the work of the third UPS as well, and if that’s the case, I can offline that, too, which would get me down to one. Otherwise, I’ll replace the batteries in that one and be down to two.