I agree the SUA1500 is probably the best UPS APC made certainly my favorite but this happened. Surprised at all the doubt. I know because I smelled this liquid, it was odorless and about 5 minutes later I was pretty violently ill. Could it have all been a series of coincidence? I would bet a million dollars against it but technically sure. So it went in the trash and I was fine. This was a while ago and the unit came with batteries so that really isn't here nor there. In hindsight I should've made a big deal about it. I wrote a few angry emails and such but I was mostly relieved that I didn't die at that point and could care less about well quite a few hundred dollars at the time if I recall. This was a while back now somewhere around I want to say 2010ish. I had health insurance and no damages to show, lawyers are expensive. When you're actually in this kind of a situation very few people care to listen. There's nobody to call and very little to be gained from a fight anyway. I wasn't going to hand over the evidence to the company that made the product in exchange for another gd UPS. I had better things to do
If it was the UPS then that may have been a rare allergy to something.
Lead-acid batteries contain H2SO4 and can emit H2S when being charged vigorously; the latter is definitely not odorless, and the former won't have a smell but instead produce a burning sensation if you did inhale any vapors (which is difficult, since it has a very low vapor pressure at room temperature.)
