APC RBC2 Replacement Battery – 12V 9Ah

Description

Looking for a reliable APC RBC2 replacement UPS battery? This 12V 9Ah AGM sealed lead acid (SLA) battery is a direct replacement.  It provides dependable backup power for your UPS system.

Compatible UPS Models

The RBC2 is commonly used in older APC Back-UPS systems designed for home and small office backup power including:

• APC BE500R
• APC BE500U
• APC BK200
• APC BK250B
• APC BK280B
• APC BK350
• APC BK400
• APC BK500

Key Features

• 12 Volt 9Ah AGM UPS Battery – 20% longer run time compared to a 7Ah battery
• Maintenance-free sealed lead acid design
• Spill-proof – installs in any position except upside down
• Pre-charged and ready for installation
• Ideal for backup power systems and emergency power protection

For full technical specifications including dimensions and terminal type, please see our main 12V 9Ah AGM SLA battery page.

FAQs

Is this the correct battery for my APC Back-UPS BE550R?

Yes. The RBC2 12V 9Ah AGM battery is a direct replacement for the BE550R UPS model and other compatible units.

How do I install the APC RBC2 replacement battery?

Installation is simple. Slide the battery into the UPS compartment, connect the terminals, and close the cover. Installation does not require special tools.

How long does an APC RBC2 battery last?

Most UPS batteries last 3–5 years, depending on usage and ambient temperature.

Is this battery safe for home or office use?

Yes. It’s a VRLA battery – sealed, maintenance-free and designed for standby UPS power.

What type of battery is APC RBC2?

It’s a 12V 9Ah AGM (Absorbent Glass Mat) sealed lead acid battery.

APC™ and all APC RBC part numbers are registered trademarks of American Power Conversion. Part numbers listed on this page are for reference purposes only and do not imply endorsement or sponsorship by APC.