Mighty Max Battery 12V 7AH for APC Back-UPS 550 BE550G Rechargeable Sealed Lead Acid 1270 Backup Power Batteries in the Device Replacement Batteries department at Lowes.com
APC Back-UPS Pro 1500VA 10-Outlet/2-USB Battery Back-Up and Surge Protector Black BN1500M2 - Best Buy
BR550GI APC Power-Saving Back-UPS Pro 550 - Worldeyecam
How to Check if UPS Battery is User Replaceable Back UPS Pro 550 - YouTube
APC Back-UPS Pro 550 Replacement Battery BR550GI – hardwarexpress