APC Smart-UPS X-Series 120V External Battery Pack Rack/Tower UPS

The APC SMX120RMBP2U is an external battery pack that adds valuable runtime to compatible APC Smart-UPS X-Series units operating at 120 volts. When a power outage or brownout strikes, this pack keeps servers, network switches, storage arrays, or point-of-sale terminals running long enough for an orderly shutdown or continued operation during short interruptions.

Designed for flexibility, the pack arrives ready for either a standard equipment rack or a vertical tower position, so it fits neatly whether you manage a dense data center row or a space-constrained wiring closet. The plug-and-play cable connects directly to supported SMX-series UPS models, and included brackets make the physical installation straightforward for one technician.

IT managers in branch offices, retailers who cannot afford transaction downtime, and research labs that protect active experiments all benefit from the extra cushion this pack provides. By extending backup time beyond the internal batteries in a UPS, it gives staff the window they need to save work, close applications, or ride through brief utility disruptions without a hitch.

A sealed lead-acid design balances dependable performance with predictable maintenance cycles. At 124 pounds and measuring roughly 26 by 17 by 3 inches, it delivers significant capacity while maintaining a low-profile height that preserves rack space. A durable black chassis matches the look of other APC gear for a tidy appearance in visible installations.

The two-year repair or replacement warranty underscores APC’s confidence in the battery pack and offers peace of mind for budget-conscious operations teams.

Highlights:

• 120 V sealed lead-acid external battery pack that extends UPS runtime
• Works in a rack or stands upright as a tower to match diverse layouts
• Seamless plug-and-play connection to APC Smart-UPS X-Series SMX models
• Includes rack-mounting brackets for simple installation
• Two-year repair or replacement warranty from APC
• Weight: 124 lb (56.36 kg)
• Dimensions: 26.3 × 17 × 3.3 inches