CYBERPOWER
CYBERPOWER RB1290X3B REPLACEMENT BATTERY 3 X 12V/9AH BATTERIES 18-MONTH WTY
Mfg Part Number: RB1290X3B , Item #: 4254813
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Price: $198.65
+ Free Shipping
Quantity:
In Stock: 1
Last Updated: Oct 16, 2025
No Sales Tax except these states
, PO and Wire.
The RB1290X3B UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries. The RB1290X3B contains three 12V/9Ah batteries, certified to meet or exceed original manufacturer specifications. This leak-proof, sealed lead-acid battery never requires replacement fluid. The pre-assembled cartridge installs easily into your CyberPower UPS system and is shipped with reusable packaging for delivering expired batteries to a suitable recycling center. The RB1290X3B comes with instructions, recycling information, and an eighteen-month warranty.
Main Specification
| General Information | |
| Manufacturer | CyberPower Systems, Inc |
| Manufacturer Part Number | RB1290X3B |
| Manufacturer Website Address | https://www.cyberpowersystems.com/ |
| Brand Name | CyberPower |
| Product Series | UPS Replacement Batteries |
| Product Model | RB1290X3B |
| Product Name | RB1290X3B UPS Battery Pack |
| Product Type | UPS Battery Pack |
| Technical Information | |
| Battery Characteristics | Leak Proof/User Replaceable |
| Battery Characteristics | Sealed |
| Battery Chemistry | Lead Acid |
| Battery Capacity | 9000 mAh |
| Output Voltage | 12 V DC |
| Environmental Conditions | |
| Maximum Operating Temperature | 104°F (40°C) |
| Physical Characteristics | |
| Height | 4.1" |
| Width | 5.9" |
| Depth | 7.8" |
| Weight (Approximate) | 17.73 lb |
| Miscellaneous | |
| Package Contents |
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| Additional Information |
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| Compatibility | CyberPower M1100XL UPS |
| Country of Origin | China |
| Warranty | |
| Limited Warranty | 18 Month |
WARNING:: The plastic used in cable products can expose you to lead and lead components,
chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
