BTI Replacement Battery #7 for APC - UPS battery - lead acid - RBC7-SLA7-BTI - UPS Battery Replacements - CDW.com
Amazon.com: RBC7-UPC Replacement Battery for APC Smart-UPS SU1400, SUA1500, SUA750XL, SUA1000XL, SU1400NET, SU1000XLNET - Scroll Down for The Complete List of Compatible Models : Electronics