MM-18-BP Replacement Battery for APC UPS PS250I, PS450I - 12V 7.2Ah AGM

Power outages can strike without warning, leaving your critical electronics vulnerable to sudden shutdowns and data loss. The MM-18-BP replacement battery restores your APC Back-UPS PS250I or PS450I to full backup capacity, ensuring your connected equipment stays powered long enough for a safe shutdown or until power returns. This sealed lead-acid (AGM) battery delivers 12V and 7.2Ah, matching the original RBC18 specifications for reliable performance.

Who is it for

Ideal for home office users, small business owners, and IT professionals who rely on APC Back-UPS PS250I or PS450I units to protect computers, networking gear, and other sensitive electronics. If your UPS has been beeping or failing its self-test, this battery is the cost-effective way to extend its life instead of replacing the entire unit.

Main features

• Exact replacement for APC RBC18 battery cartridge
• 12V 7.2Ah sealed lead-acid (AGM) technology
• Maintenance-free and spill-proof construction
• F2 (Faston Tab 250) terminals for easy installation
• Long service life: 3-5 years in standby use
• Wide operating temperature range: -15°C to 50°C
• CE and UL recognized for safety and reliability

Specifications

• Battery type: Sealed Lead Acid (SLA)
• Chemistry: Lead-Acid (AGM)
• Voltage: 12V
• Capacity: 7.2Ah
• Terminal type: F2 (Faston Tab 250)
• Rechargeable: Yes
• Maintenance-free: Yes
• Expected lifespan: 3-5 years (standby use)
• Compatible APC RBC: RBC18
• Compatible UPS models: APC Back-UPS PS250I, PS450I
• Number of batteries included: 1
• Operating temperature range: -15°C to 50°C
• Storage temperature range: -20°C to 60°C
• Float charge voltage: 13.5V - 13.8V
• Cycle use voltage: 14.4V - 15.0V
• Internal resistance: < 25mΩ
• Self-discharge rate: Approx. 3% per month at 20°C
• Certifications: CE, UL (component recognized)
• Application: Uninterruptible Power Supplies (UPS)
• Construction: Absorbent Glass Mat (AGM) technology for superior performance

Tips

To maximize battery life, keep your UPS in a cool, dry place and avoid deep discharges. Replace your battery every 3-5 years or when your UPS signals a battery failure. Always recycle old batteries properly.