APC APCRBC158 UPS Replacement Battery for BX1000M
- Battery
- APCRBC158, APC
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Kit with two 6V9Ah sealed lead-acid batteries restores runtime to compatible 500 VA CyberPower UPS units
This replacement battery kit contains two factory-fresh 6V9A sealed lead-acid cells built to match the original CyberPower UR500RM1U cartridge. It is designed for administrators who need a drop-in refresh for rack-mounted UPS units without rewiring or firmware changes.
When the existing pack no longer holds enough runtime to bridge generator start-up or graceful shutdown, this kit restores the original capacity. The jump is worth it if the UPS still powers on but alarms immediately or shuts down loads within minutes of a mains failure.
The high-rate discharge chemistry delivers steady voltage through the full runtime curve instead of collapsing after an initial burst. Comprehensive installation instructions are included so the swap can be completed during a scheduled maintenance window without special tools.
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| Product | |
|---|---|
| Brand name | CyberPower |
| Product line | CyberPower Standby Batteries |
| Product type | Kit/Package |
The kit contains two 6V9A sealed lead-acid cartridges designed to fit the existing battery compartment of the UR500RM1U without modification.
The guide stresses verifying correct polarity on each terminal before closing the cover; skipping this check can prevent the UPS from recognising the new pack.
Typical sealed lead-acid life is three to five years; plan replacement when runtime drops noticeably or the UPS signals a battery fault.
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