Information 6V SLA AGM | Premier OEM Replacement Battery by AJC® Maintenance-Free AGM Technology: No need to add acid or water, ever. Guaranteed to Fit: Engineered for an exact, easy installation. UL Recognized Component: Certified for safety and performance. Buy with Confidence: Backed by easy 30-day returns and a 12-month warranty. IMPORTANT: You MUST re-use your existing cabling and hardware. These are replacement batteries only. NOTE: It is your responsibility to verify the batteries being ordered match the batteries in your unit prior to purchase. We are not responsible for incorrect orders. Disclaimer: Our products are not affiliated with, authorized by, manufactured by, or sold by APC.SpecificationsFor AJC Battery Compatible with APC RBC18 6V 7Ah RBC Battery Brand: AJC® Replacement Batteries AJC Part #: AJC-C7S Replaces Part #: RBC18 Batteries Required for Full Replacement: 2 Chemistry: Sealed Lead Acid (AGM) Length: 5.94 in. Width: 1.34 in. Height: 3.74 in. View Battery Specifications Resources Replacing Your RBC Battery Benefits of AJC® Replacement Batteries RBC AGM Battery Care View RBC Battery ResourcesFAQs What is the best replacement battery for the APC RBC18 UPS Battery? The AJC-C7S-X-2-185046 is the best replacement battery for the APC RBC18 UPS Battery. What are the dimensions of the APC RBC18 UPS Replacement Battery? The dimensions are L 5.94 x W1.34 x H 3.74 inches. What is your return policy and battery warranty? Our batteries are backed by easy 30-day returns and a 12-month warranty. How do I maintain my SLA battery? These batteries are maintenance-free and factory activated. They arrive fully sealed, charged and ready for action. Do I need to add acid to this battery? No need to add acid or water, ever. Do you have a wholesale, reseller and large volume purchase program? Yes, our bulk purchasing program saves you money and allows you to obtain the batteries you need in one easy, hassle-free transaction. Apply here.