Your APC SmartUPS has been running on a battery that's past its prime. You can hear it – the runtime's dropping, the beeps are getting more frequent. This is the genuine #116 replacement cartridge. 48V lead-acid, fully assembled, tested and certified for 100% compatibility with your SMX750I or SMX1000I. Slot it in, close the cover, done. Three to five years of reliable backup from here. No guessing whether a third-party pack will actually fit. Add to cart and get your UPS back to full runtime before the next outage finds you unprepared
