CyberPower RB1290X3R Replacement Batteries | 18-Month Warranty

Keep your UPS ready for the next outage with a replacement battery pack built for compatible CyberPower systems. The RB1290X3R is a sealed lead-acid battery solution designed to restore backup capacity in the BP36V60ART2U UPS platform, giving infrastructure teams a direct path to service the power system without replacing the entire unit. With a 9,000 mAh battery capacity and maintenance-free, leak-proof construction, this pack is suited to environments where reliability and predictable maintenance windows matter. It helps return the UPS to its intended runtime profile, supporting orderly shutdowns, short-duration ride-through, and continuity for network gear, storage, and edge systems. The 18-month warranty adds a practical layer of coverage for organizations that want a replacement part aligned to planned service cycles. For procurement teams, that means a focused refresh option that protects the original UPS investment. For operations teams, it means less time troubleshooting degraded batteries and more confidence that backup power will perform when needed. This is the right replacement when battery wear begins to affect runtime or when you want to keep a supported UPS platform in service longer. It is a maintenance part with a clear purpose: restore the power reserve your critical systems depend on.