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Rectangular sealed lead-acid battery cartridge, grey plastic housing, dual pack, pre-assembled, 14.96 by 21.26 by 15.74 inches

CyberPower

CyberPower RB1290X16 12V 9Ah UPS replacement battery

SKU CH-KHBD-NW3SE MPN RB1290X16

A pre-assembled, user-installable 12V 9Ah sealed lead-acid cartridge for PR6000LCDRTXL5U and PR5000LCDRTXL5U UPS units

  • Product typeBattery
  • Compatible withPR6000LCDRTXL5U, PR5000LCDRTXL5U
  • DetailsEnvironmental Operating Temperature 0–40 Degree Celcius Oper
  • Key featuresOEM Certified Replacement Battery Maintenance-Free Leak proo
  • Product dimensions14.96 in × 21.26 in × 15.74 in
  • Product weight108.7 lb (49.3 kg)
  • OEM-certified replacement ensures compatibility with PR5000LCDRTXL5U and PR6000LCDRTXL5U UPS units
  • Maintenance-free sealed lead-acid design eliminates routine upkeep
  • Leak-proof construction protects equipment from acid spills
  • Pre-assembled dual-cartridge layout enables user installation without tools
  • Operates reliably from 0 to 40 °C and up to 90 % humidity

Compatible UPS Models

This replacement battery cartridge fits the PR6000LCDRTXL5U and PR5000LCDRTXL5U uninterruptible power supplies. It is an OEM certified part designed for direct installation without tools. The dual battery cartridge arrives pre-assembled for immediate deployment. Buyers with different UPS models must verify compatibility before ordering.

Environmental Operating Limits

The sealed lead-acid cells operate reliably between 0 and 40 degrees Celsius. Humidity tolerance spans 0 to 90 percent non-condensing, covering typical indoor server rooms. Operation outside these ranges can reduce service life or trigger protection circuits. Installations in uncontrolled environments such as garages or outdoor cabinets are not supported.

Battery Capacity Specification

Each cartridge delivers 12 volts and 9 ampere-hours of sealed lead-acid capacity. This rating determines the runtime available to connected equipment during a power outage. Systems requiring longer autonomy or higher voltage configurations cannot use this cartridge. Verify the required ampere-hour rating matches your UPS specification exactly.

How it compares

Measured against everything we stock in UPS Replacement Batteries, at today’s prices. Recalculated every night.

Price $728.99
Pricier than about 91% of the 3,915 comparable items (median $39.99).

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Specifications

Product
Brand nameCyberPower
Model nameRB1290 × 16
Product typeBattery
Size & build
Product dimensions14.96 in × 21.26 in × 15.74 in
Product weight108.7 lb (49.3 kg)
Shipping weight36.29 kg
Package size648 × 394 × 324 mm
Compatibility
Compatible withPR6000LCDRTXL5U, PR5000LCDRTXL5U

Questions about this item

How do I know the RB1290X16 is the right cartridge for my UPS?

This cartridge is built for the PR6000LCDRTXL5U and PR5000LCDRTXL5U models. Check the label on your UPS; if it matches one of those, the RB1290X16 is the correct replacement.

What runtime can I expect from the 12V 9Ah sealed lead-acid cells in my UPS?

Runtime depends on the load connected to the UPS. The 9Ah rating at 12V gives the energy capacity; heavier loads draw current faster and shorten the backup time.

Does the cartridge use a standard battery connector or a proprietary interface?

The dual-battery cartridge is pre-assembled with the connectors required for the compatible CyberPower UPS units, so it plugs straight into the battery compartment without extra wiring.

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