APC Replacement Battery Cartridge #105 – 48V Lead-Acid | For SUA48RMXLBP3U UPS (Requires 2)

Your UPS just beeped and the battery-backup light is flashing. The cartridge's past its three-to-five-year window and your server, switch, or phone system has no protection left.

The APC RBC #105 is a genuine 48V lead-acid cartridge, tested and certified for 100% compatibility with the SUA48RMXLBP3U. It arrives fully assembled – all connectors, installation guide, and recycling guide in the box. Swap it in and your UPS is back to full runtime.

Note: the SUA48RMXLBP3U uses two RBC #105 cartridges. Order the pair so you're not half-protected.

Two-year repair-or-replace warranty. Add to cart before that next brown-out catches you flat

• Genuine 48V lead-acid cartridge, tested for 100% compatibility with SUA48RMXLBP3U
• Fully assembled and ready to install – connectors, installation guide, and recycling guide included
• Typical service life: three to five years under normal operating conditions (0–40 °C)
• Enclosed battery cartridge design; not rack-mountable
• SUA48RMXLBP3U requires two RBC #105 cartridges – order as a pair for full protection
• Two-year repair-or-replace warranty