MIGHTY MAX BATTERY 12V 7AH compatible replacement battery for APC Back-UPS 550 BE550G ML7-12191111111101111135 - The Home Depot
Tripp Lite G1000 U 12V 7Ah UPS Replacement Battery: BatteryClerk.com
Amazon.com: POWERSTAR 12V 7Ah Battery Replacement for APC Back-UPS ES 650 UPS : Health & Household
Amazon.com: HWE 12V 7Ah Battery, 12V Lithium Battery, Deep Cycle 12V LiFePO4 Battery Built-in BMS with F2 Terminal Offer 4000 Cycles Life, for Small UPS, Solar Power, Fish Finder, and Speaker :