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
APC SMART-UPS DLA1500 Assembled Battery Cartridge
Mighty Max Battery 12V 18AH GEL Battery Replacement for APC Dell Smart-UPS 1500 DLA1500I