APC RBC33 UPS System Battery
Product Details
OSI Batteries is your One Source for aftermarket Sealed Lead Acid APC Replacement Battery Cartridges. With a maintenance-free, high-rate design, and leak proof structure, APC-RBC33 provides a dependable, optimum performance for UPS applications. This aftermarket replacement battery cartridge is assembled by OSI Batteries using high quality sealed rechargeable batteries. APC-RBC33 is guaranteed to meet or exceed the specifications of the original APC replacement battery cartridge.
All required wires and connectors included
We recommend checking your existing battery for size, configuration, and quantity prior to ordering as manufacturers may change requirements without notice.
Reviews
We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
4.7
Out of 5.0
Overall Rating
96%
of customers that buyfrom this merchant give
them a 4 or 5-Star rating.
January 21, 2026 by Doug S. (ND, US)
“Very good website and easy access to correct battery replacments.”
January 21, 2026 by D Y. (TX, US)
“Check out is confusing for 1 st. time buyer”
January 20, 2026 by Linda D. (OH, US)
“Hard to find batteries with easy purchase”
