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Two rectangular sealed lead acid batteries side by side, grey plastic casings with terminal posts on top

GreenTechLLC

GreenTechLLC RB1290X2 12V 9AH x 2 SLA Battery

SKU CH-0WB5-JJTY3

Two 12 V 9 Ah sealed lead-acid cells tested and ready to install in compatible CyberPower UPS units

  • Runtime on battery1–30 minutes
  • Battery charge time<24 Hour
  • Battery typeSealed Lead Acid
  • Compatible with multiple CyberPower UPS models
  • Sealed lead-acid chemistry provides reliable backup power
  • Two 12 V 9 Ah cells deliver extended runtime
  • Each cell measures 5.94 x 2.56 x 3.94 inches
  • Tested and charged before shipping for immediate installation

What this battery replaces

This sealed lead-acid pack contains two 12 V 9 Ah cells sized at 5.94 x 2.56 x 3.94 inches each. It is a direct replacement for the CyberPower RB1290X2 and RB1290 batteries used in multiple UPS models. The unit arrives tested, charged and ready to install.

Runtime and recharge behaviour

Under load the pack delivers between one and thirty minutes of backup power depending on the connected equipment. After a discharge the cells require less than twenty-four hours to reach full charge again. The sealed construction means no maintenance is needed during that cycle.

The fit check that matters

Compatibility is limited to the listed CyberPower UPS units including the BRG1350AVRLCD, BRG1500AVRLCD, LX1500GU, CP1350AVRLCD, CP1500AVRLCD, CST150XLU, CP1000AVRLCD, CP1000PFCLCD and CP1000PFCLCDTAA. If your UPS model is not on this list the battery will not fit or function correctly.

How it compares

Measured against everything we stock in Uninterruptible Power Supplies (UPS), at today’s prices. Recalculated every night.

Price $62.99
Cheaper than about 95% of the 1,153 comparable items (median $948.99).

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Specifications

Power
Runtime on battery1–30 minutes
Battery charge time<24 Hour
Battery typeSealed Lead Acid

Questions about this item

How long does the 12 V 9 Ah sealed-lead-acid pack take to recharge after a full discharge?

Recharge time is under 24 hours, so the pack can be ready again within a day.

Which UPS models must I already own for this RB1290X2 replacement to fit?

It fits CyberPower BRG1350AVRLCD, BRG1500AVRLCD, LX1500GU, CP1350AVRLCD, CP1500AVRLCD, CST150XLU, CP1000AVRLCD, CP1000PFCLCD and CP1000PFCLCDTAA units.

Will the 5.94 x 2.56 x 3.94 inch cells line up with the original RB1290 battery tray in my older CyberPower UPS?

Yes, each cell matches the RB1290 dimensions so it drops into the existing tray without modification.

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