We ordered batteries for an APC Rack Mount UPS (SRT5KRMXLT) with an expanded battery pack and ended up with 10 batteries when we only needed 6. Rather than put them on a shelf for a few years and have them potentially die there, we figured we would sell them now while they are brand new.

These particular units are supposed to be up to double the life of the APC stock ones... we were told they would last 3-5 years when we purchased them in December.

The picture of one outside of the box is one that we installed... the 4 that we are selling are still sealed in box.