When your APC Smart-UPS RT SURT5000RMXLT starts beeping or shows a "Replace Battery" indicator, you need a reliable fix fast. The RefurbUPS APC RBC44 replacement battery cartridge is a complete plug-and-play solution for your 5000VA rackmount UPS — pull out the old cartridges, slide in the new ones, and you're back online in minutes.
What's included: 16 brand new 12V 5.5Ah premium grade sealed lead-acid (AGM) batteries installed across 2 genuine APC factory-original metal enclosures — a complete dual-tray RBC44 replacement set. The enclosures have been professionally cleaned, inspected, and tested for proper fit and function. Arrives fully assembled and ready to install.

Compatible APC UPS Models
SURT Series: SURT3000XLI, SURT3000XLT, SURT3000XLTW, SURT3000RMXLI, SURT3000RMXLT, SURT5000XLI, SURT5000XLT, SURT5000XLTW, SURT5000RMXLI, SURT5000RMXLT, SURT6000XLT, SURT6000RMXLT3U
SURTD Series: SURTD3000XLI, SURTD3000XLT, SURTD3000RMXLI, SURTD3000RMXLT3U, SURTD6000XLT, SURTD6000RMXLT3U
SURTA Series: SURTA3000XL, SURTA3000RMXL, SURTA3000RMXL3U
SRT Series: SRT5KXLT, SRT5KXLT-IEC, SRT5KXLI, SRT5KRMXLT, SRT5KRMXLT-IEC, SRT5KRMXLI, SRT5KRMXLW-HW, SRT6KXLI, SRT6KRMXLI
APC Part Numbers: 0M-1863, 0M-1863A, 0M-1863B, 0M-816336, 0M-816336A-700, 0M-816336B-700, 0M-816336C-700

Not sure if this fits your SURT5000RMXLT? Find the model number on the label on the back of your unit. The SURT5000RMXLT, SURT5000RMXLI, and SURT5000XLT all use the same RBC44 battery cartridge system.

Why not just buy the original APC tray new? We use the same genuine APC tray, same battery chemistry, same plug-and-play fit — at a fraction of OEM cost. RefurbUPS is a UPS company backed by over 25+ years of experience, and every cartridge is assembled, inspected, and tested in the USA before it ships.

Every RefurbUPS APC RBC44 is backed by a 1-year warranty and responsive support from real UPS power protection specialists.