CYBERPOWER
CYBERPOWER RB1290X8 BATTERY 8X12V/9AH SEALED LEAD-ACID
Mfg Part Number: RB1290X8 , Item #: 5861458
Image may not reflect the actual item.
Price: $749.73
Quantity:
In Stock: 6
Last Updated: Mar 30, 2026
No Sales Tax except these states
, PO and Wire.
The RB1290X8 UPS Replacement Battery Cartridge restores life to CyberPower UPS systems that have weak or completely depleted internal batteries. The RB1290X8 contains eight 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 RB1290X8 comes with instructions, recycling information, and an eighteen-month warranty.
UPS Compatibility
OL8KRTHD, OL10KRTHD
Main Specification
| General Information | |
| Manufacturer | CyberPower Systems, Inc |
| Manufacturer Part Number | RB1290X8 |
| Manufacturer Website Address | https://www.cyberpowersystems.com/ |
| Brand Name | CyberPower |
| Product Model | RB1290X8 |
| Product Name | RB1290X8 UPS Battery Pack |
| Product Type | UPS Battery Pack |
| Technical Information | |
| Battery Characteristics | Sealed/User Replaceable |
| Battery Characteristics | Leak Proof |
| Battery Chemistry | Lead Acid |
| Battery Capacity | 9000 mAh |
| Battery Size | 12V |
| Environmental Conditions | |
| Minimum Operating Temperature | 32°F (0°C) |
| Maximum Operating Temperature | 104°F (40°C) |
| Physical Characteristics | |
| Height | 4.2" |
| Width | 6.1" |
| Depth | 22.1" |
| Weight (Approximate) | 48 lb |
| Miscellaneous | |
| Package Contents |
|
| Compatibility | CyberPower Uninterruptible Power Supplies:
|
| 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
