It doesn't look modern, but when the lights go out and your internet stays on, you won't care.
Additionally, the on the back allows you to install a network management card (sold separately), enabling you to remotely reboot hung servers or receive SNMP alerts—a feature unheard of in its price class. The Achilles Heel (And How to Fix It) Let’s be honest: The original batteries are the weak link. The RBC (Replacement Battery Cartridge) for the 750 typically lasts 3 to 5 years. After that, the unit starts beeping incessantly, and runtime drops to 30 seconds.
You can buy third-party replacement cartridges for $60 instead of paying $200 for a new unit. Swapping the battery takes 90 seconds and requires no tools. Verdict If you need to keep a router and a desktop alive through a 45-minute blackout, buy a lithium power station. But if you need industrial-grade protection —constant voltage regulation, data line surge protection (Ethernet/Coax), and pure sine wave output for sensitive electronics—the APC Smart-UPS 750 is still the king of the closet.
