Taking a lesson from the Tim Allen school of modding, one man rebuilt his UPS with a bit more kick. Because the UPS was only able to run his RAID-wielding desktop for three minutes before shutting down, he decided to add two 24V car batteries to the equation (the maximum that his UPS could tolerate). The good news: it worked, and will run his computer for an hour plus.
The bad news is that these larger lead acid batteries are not sealed, and will be releasing some not-so-good gases into his computer room. Hit the movie at about halfway for the money shot. [techspot]