Is it worth buying a replacement battery for a UPS or better to buy a completely new UPS? I have heard a UPS is never the same after the original battery dies and is replaced.
Is it OK to use a third party after-market replacement battery or should you always go with the original manufacture's replacement battery?
My question is specifically about the APC XS 800 (a small business/home UPS) but I'm interested in your thoughts about UPSs in general.