I really like APC for their UPS products. One particularly cool program they have is a trade in program for old UPS models. I bought a UPS from them a few years ago, the battery is going bad, and it’s not user replaceable. For about $60, I got a new UPS with lots of nice features and more power than my old one, and I’m getting prepaid shipping labels that I can use to ship back my old UPS instead of putting it (and its toxic battery) in a landfill somewhere.