Amazon.com: APC UPS 1000VA Sine Wave UPS Battery Backup and Surge Protector, BR1000MS Backup Battery Power Supply with AVR, (2) USB Charger Ports : Electronics
APC Smart-UPS 1000VA XL (SU1000XLNET) - Brand New Compatible Replacement Battery Kit with Harness | RefurbUPS
Amazon.com: APC Smart-UPS 1000VA UPS Battery Backup with Pure Sine Wave Output (SMC1000)(Not sold in Vermont) : Electronics