Replacement UPS Battery Cartridge APC RBC43 MM-43-BP 12V 7Ah

APC OEM replacement battery cartridge RBC43 (also referenced as MM-43-BP) is a sealed lead-acid 12V 7Ah module designed to restore backup power capability in compatible APC UPS units. It replaces depleted batteries to recover the UPS’s ability to provide temporary power during outages, enabling controlled shutdowns and protection of connected equipment. The cartridge form factor allows straightforward installation into supported UPS models without requiring battery assembly or additional tools.

Advantages

This replacement cartridge is manufactured to APC specifications to ensure compatibility and reliable performance with specified UPS units. The sealed lead-acid chemistry provides maintenance-free operation and a stable voltage output under typical load conditions. Its 12V 7Ah capacity offers sufficient runtime for short-term backup in home and small office environments, allowing users time to save work and power down devices safely. The cartridge format minimizes handling of individual cells and simplifies disposal compared with custom battery builds.

Suitable for

• Restoring backup functionality in compatible APC UPS systems
• Home office setups requiring brief power reserve for computers, routers and modems
• Small business environments protecting point-of-sale terminals and network equipment
• IT maintenance tasks that require reliable temporary power for safe shutdowns

Key specifications

• Battery type: Sealed lead-acid (VRLA)
• Nominal voltage: 12 V
• Capacity: 7 Ah
• Form factor: Cartridge module for direct replacement
• Maintenance: Maintenance-free, spill-proof design
• Typical applications: Standby/back-up power for small UPS units

How to use

Before replacing the battery, disconnect the UPS from mains power and switch the unit off. Open the UPS battery compartment according to the UPS manufacturer’s instructions, remove the depleted cartridge, and install the replacement cartridge into the connector and housing until it seats securely. Close the compartment and reconnect mains power. Allow the UPS to charge the new battery fully before relying on it for backup—charging times vary by UPS model and charge state.

Usage recommendations

Use this APC-compatible 12V 7Ah cartridge only in UPS models listed by the UPS manufacturer as compatible. Store batteries in a cool, dry place and avoid prolonged exposure to high temperatures. Regularly test the UPS and perform periodic runtime checks to verify battery condition; replace the cartridge if runtime falls below expected levels or if the battery shows signs of swelling or leakage.