Bk520 APC Back-UPS Pro Battery – 12V, 12Ah (144Wh) Reliable Power for Uninterrupted Performance Ensure seamless power backup for your Bk520 APC Back-UPS Pro with this high-performance 12V 12Ah Sealed Lead Acid (AGM) battery. Designed for durability and efficiency, this replacement battery guarantees stable energy output, making it an excellent choice for your UPS system. Key Features: Powerful Performance: Delivers 12V, 12Ah (144Wh) to keep your UPS running efficiently. Maintenance-Free AGM Technology: Absorbent Glass Mat (AGM) design ensures spill-proof and hassle-free operation. Guaranteed Compatibility: Perfect replacement for the Bk520 APC Back-UPS Pro and other systems requiring a 12V 12Ah battery. Durable & Long-Lasting: Made from high-quality materials to extend battery life and improve energy retention. Easy Installation: Features T2 terminal connectors for a secure and quick setup. Compact & Sturdy Design: Precisely designed to fit your UPS system. Specifications: Brand: CB Range Battery Model: RBC4 Replacement For: Bk520 APC Back-UPS Pro Voltage: 12V Capacity: 12Ah Chemistry: Sealed Lead Acid (AGM) Gross Weight: 3.6 Kg (7.94 lbs) Terminal Type: T2 SKU: RBC4-B232 Battery Dimensions: Height: 3.7 inches (94 mm) Height to Terminal: 3.94 inches (100 mm) Length: 5.95 inches (151 mm) Width: 3.86 inches (98 mm) Important Note: You must re-use your existing connectors and cables (some assembly required). 1-year warranty included, with 30 days to return for a refund if unsatisfied. ⚡ Order Now to keep your UPS running at peak performance!