APC Power Saving Back-UPS XS 1500 Black BX1500G - Best Buy
APC Smart-UPS 1500VA LCD 120V Tower UPS w Smartconnect (SMT1500C)
BR1500G APC Back-UPS Pro Series | POSGuys.com
APC by Schneider Electric Back-UPS Pro External Battery Pack (for 1500VA Back-UPS Pro models) - 24 V DC - Lead Acid - 4 Year Minimum Battery Life - 6 Year Maximum Battery Life - Office Supply Hut