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APC – RBC55 – Battery Pack Replacement Kit

Manufacturer

OEM Part Number

RBC55

GPS Part Number

58_GPS-RBC-55

Price:

$229.76

Specifications
View Spec Sheet
Voltage AH/kVA Length Width Height Weight
12 Volt 18 AH 7.1 12 6.6 55.28
Voltage 12 Volt
Amp/H 18 AH
Length 7.1
Width 12
Height 6.6
Weight 55.28
APC Battery Cells โ€” for APC RBC55 Pack (NOT a Complete Cartridge)
Loose Cells Only ย โ€ขย  AGM (VRLA) ย โ€ขย  18ย Ah Class ย โ€ขย  Rebuild/Service Use

These are individual sealed lead-acid AGM (VRLA) batteries โ€” the same cell type used to populate an APC RBC55 battery module. They are not a finished RBC55 cartridge (no tray, wiring, fusing, connectors, or enclosure included).

Use these cells to rebuild your existing RBC55 tray/harness if you wish to perform the replacement yourself, or as service spares for technicians maintaining APC Smart-UPS battery modules.

Important
  • This page is for loose cells only. Customer reuses the original RBC55 tray/harness assembly.
  • Typical RBC55 modules are assembled from four (4) 12ย V, 18ย Ah cells.
  • Confirm physical fit, terminal style, and harness orientation before ordering (RBC trays can vary).
  • Battery handling required โ€” follow UPS/battery safety procedures and local disposal regulations.
Specifications โ€” Gruber Power Replacement
Parameter Value
Voltage 48ย V DC (4 ร— 12ย V in series)
Capacity 18ย Ah
Battery Count 4 ร— 12ย V, 18ย Ah
Battery Chemistry AGM, Valve Regulated Lead-Acid (VRLA)
Installation User-replaceable, plug-and-play (in existing tray/harness)
Compatibility (Representative)
Battery Cartridge Compatible APC UPS Models (Representative) Notes
RBC55 SMT2200, SMT2200I, SMT2200US
SMT3000, SMT3000I
SUA2200, SUA2200I, SUA2200XL, SUA2200UXI
SUA3000, SUA3000I, SUA3000XL, SUA3000XLI
SUA48XLBP, SUA5000RMI5U, SUA5000RMT5U
DLA2200, DLA2200I
NECA3000JW, SIA750ICH-45
Four 12ย V, 18ย Ah batteries in series (48ย V). Common in higher-capacity Smart-UPS systems; verify tray/harness layout before ordering.
Why buy from Gruber
  • Always-fresh inventory โ€” High turnover helps ensure recent-date cells for maximum service life.
  • Matched 4-cell sets โ€” When ordered as a set, cells are matched for balanced charge/discharge performance.
  • Rebuild-ready support โ€” Ideal when you want to reuse your existing tray/harness rather than buying a full cartridge.

Note: If you need a complete drop-in solution (tray/harness/cartridge), order a full RBC55 replacement cartridge instead. This listing is cells only.

Gruber Power Services