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Rectangular 12V lead-acid UPS replacement battery in black plastic case

Battery Technology Inc.

Battery Technology Inc. RB1270B 12V 1-Cell Lead Acid UPS Replacement Battery

SKU CH-TN33-PZMNJ

12 V lead-acid cell replaces CyberPower UPS batteries in CP24U12NA3-F, CPS180PHV, UP825, UP625, CPS725SL, CPS720VA, CPS650VA and CPS575SL units

  • Compatible with CyberPower UPS models including CP24U12NA3-F
  • Works with CPS180PHV and UP825 units
  • Fits CPS725SL and CPS720VA systems
  • Supports CPS650VA and CPS575SL devices
  • 12 V lead-acid cell replaces original RB1270B battery

UPS Replacement Battery

The Battery Technology Inc. RB1270B is a 12V single-cell lead acid unit designed to replace depleted batteries in compatible CyberPower UPS models. It serves administrators and home users who need to restore runtime protection for connected equipment without replacing the entire UPS chassis. The product arrives new and ready for installation in supported units.

Thermals noise and power draw

Lead acid chemistry operates silently with no moving parts, so the battery adds no audible noise to the UPS enclosure. Normal float charging draws only a modest current from the UPS charger, and the sealed construction prevents electrolyte leakage during standard operation. Heat output remains low under typical load and recharge cycles.

Upgrade path and when it applies

This battery replaces the original RB1270B cell in UPS models such as the CP24U12NA3-F, CPS180PHV, UP825, UP625, CPS725SL, CPS720VA, CPS650VA and CPS575SL. The jump is worth it when runtime has fallen below acceptable levels or when the UPS signals a battery fault. It does not increase capacity beyond the original specification.

Highlights

  • Compatible with CyberPower UPS models including CP24U12NA3-F
  • Works with CPS180PHV and UP825 units
  • Fits CPS725SL and CPS720VA systems
  • Supports CPS650VA and CPS575SL devices
  • 12 V lead-acid cell replaces original RB1270B battery

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the BTI RB1270B battery in my CyberPower UPS, and what step is often missed?

Power off and unplug the UPS, open the battery compartment, disconnect the old battery terminals noting polarity, connect the new 12V 1-cell lead acid battery matching red to positive and black to negative, secure it, close the cover, then plug in and turn on the UPS to let it charge fully before relying on backup power.

What maintenance or replacement will the BTI RB1270B need over time?

As a sealed lead acid cell it requires no watering, but plan to replace it every three to five years or when runtime drops noticeably; keep the UPS in a cool, dry location and run a self-test periodically to catch capacity loss early.

What limit appears first when the BTI RB1270B runs under sustained load?

The 12V 1-cell lead acid chemistry delivers its rated capacity at the 20-hour rate; continuous high-current discharge causes voltage to sag faster and reduces usable runtime well before the ampere-hour rating is reached.

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