UPS With Dead Batteries Reborn As A Whole-house Power Backup | Hackaday
Apc Easy UPS 1000VA - Foretec Marketplace
BK500EI | APC 180 → 266V Input Stand Alone Uninterruptible Power Supply, 500VA (300W) | RS
APC Network and Server UPS | APCGuard.com
APC UPS, 3000 VA Smart-UPS Sine Wave, Short Depth UPS Battery Backup with Extended Run Option, Tower/4U Rack Convertible, Line-Interactive, 208V (SMX3000HVT) - Newegg.com
APC Smart-UPS X 3000 Rack/Tower LCD - UPS - 2700-watt - 3000 VA - with APC UPS Network Management Card AP9631 | Dell UK