FSP Replacement Battery Pack BB-48/18RT 12V/9Ah 8-Pack 2U for Clippers 2K

Data centre technicians rely on the FSP BB-48/18RT battery pack to keep FSP Clippers 2K UPS systems running without interruption during power fluctuations. This 2U rackmount unit contains eight 12V/9Ah sealed lead-acid batteries wired in series to deliver 48V DC and 18Ah capacity, providing reliable backup power for critical servers, network equipment, and storage systems. The hot-swappable design allows technicians to replace the entire pack without powering down connected loads, minimising downtime during maintenance.

Key specifications

• Nominal pack voltage: 48V DC
• Pack capacity: 18Ah
• Battery configuration: 8 × 12V / 9Ah VRLA cells
• Form factor: 2U rackmount
• Compatibility: FSP Clippers 2K UPS series
• Hot-swappable: Yes
• Maintenance-free sealed lead-acid design
• Expected service life: 3–5 years
• Operating temperature: 0°C to 40°C
• Certifications: CE, RoHS

Why choose it

As an original FSP replacement part, this battery pack guarantees exact fit and electrical compatibility with Clippers 2K UPS models. The pre-wired internal DC connector simplifies installation, while the rugged metal enclosure protects cells from physical damage in rack environments. Unlike generic third-party batteries, it maintains the UPS manufacturer's performance and safety standards.

Ideal use cases

• Replacing aged or failed battery packs in FSP Clippers 2K UPS units
• Maintaining backup power for servers, switches, and storage arrays in 19-inch racks
• Planned preventive maintenance in data centres and server rooms
• Ensuring business continuity during power outages

Good to know

The battery pack is designed for hot-swapping, allowing replacement without downtime. It is maintenance-free and complies with CE and RoHS standards. For optimal performance, operate within 0°C to 40°C.