[rescue] Any recommendations on rack-mount UPS?

[Rich Kulawiec]

On Mon, Oct 12, 2009 at 10:56:09AM -0600, Robert Darlington wrote:
> did when the day comes and you need to get the old gel cells out, but you
> can't because they swelled up and are permanently locked inside the
> equipment.

I'm about to reveal the astonishing depths of my ignorance, but could
you (or anyone) please explain why this happens?  (I've done a bit of
googling to try to spare you the question, but nothing I've gotten
back seems to actually tell me what I'm trying to learn.)

Thanks,
---Rsk