APC Back UPS Pro 550 230V BR550G – Quick Informatica S.A
Teardown and operation of an APC Back-UPS RS 550
Amazon.com: Apc, Replacement Battery Cartridge #110 Ups Battery 1 X Lead Acid For Back-Ups Es 550, 600, Back-Ups Pro 550, Back-Ups Rs 650 "Product Category: Ups/Power Devices/Batteries (Ups)" : Electronics
APC Back-UPS Pro 550VA/330W (BR550GI)
Powery GEL battery for UPS APC Power Saving Back-UPS Pro 550 9Ah 12V, 12V, 9Ah/108Wh, Lead-Acid battery, rechargeable, 151mm x 65mm x 94mm, 100% Compatible. New - AliExpress Consumer Electronics