[underlogic]

It came from a leak in the battery during charging. Exactly what the gas was is still unknown but it knocked me for six a couple of days after I received the unit. I thought about getting it tested and even suing but it took out my whole apartment and I just had to get rid of it and cut my losses. I was in the ER unable to stand and in quite a state, lost balance and coordination and was incoherent for a while. CAT scan w/contrast, it was a whole production on Thanksgiving at 3am. They monitored me for a couple days and sent me back to the apartment where all the symptoms immediately returned, and then I put it together and looked closer at the UPS. Underneath it was a couple of drops of black liquid that had come from the battery compartment and after returning to the ER again to go throw up some more I went back and took it straight to the garbage. I think it was one of those types of gas that can effect you in the PPM range. Totally odorless. This was the enterprise APC UPS, the model was SUA1500

[zettabomb]

The SUA1500 is a pretty reliable unit and I highly doubt that's the issue. If there was a problem with the battery, those were poor quality batteries, but nothing to do with the UPS and not a reason to avoid them if you have a good use. I've also never heard of such a gas being produced that was odorless, do you know this is what happened for sure or are you just speculating?

[underlogic]

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

[userbinator]

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.)