The APC Back-UPS 600VA BE600M1 was introduced in 2016 as the replacement to the APC Back-UPS 550VA BE550G that originally came out in 2008. I actually bought the old APC Back-UPS 550VA nearly a decade ago and it just recently started giving off an alert that the battery was on it...
330W Battery Backup Power Supply & Surge Protector with USB Charger, BN600U1 (Black), 7 Outlets-APC BE650G1 Be650g1 Back-Ups Es 650 Battery Backup System, 8 Outlets, 650va, 365 JNewAPC APCRBC123 Replacement Battery Cartridge #123-CyberPower...