IBM 990-E35 UPS System Battery
OSI Batteries is your One Source for IBM UPS System replacement batteries. CP1290 is a high quality aftermarket battery that fits IBM 990-E35 model uninterruptible power supply systems.
IBM 990-E35Requires 8 batteries per unit please add to cart accordingly.
We recommend checking your existing battery for size and specifications prior to ordering as manufacturers may change requirements without notice. The original batteries in many UPS Systems are tied together with wire harnesses and/or fuses; we recommend that you save these in order to reuse them with your replacement batteries.
IBM 990-E35Requires 8 batteries per unit please add to cart accordingly.
We recommend checking your existing battery for size and specifications prior to ordering as manufacturers may change requirements without notice. The original batteries in many UPS Systems are tied together with wire harnesses and/or fuses; we recommend that you save these in order to reuse them with your replacement batteries.
| Chemistry: | Rechargeable Sealed Lead Acid |
| Nominal Voltage: | 12v |
| Nominal Capacity: | 9Ah 34W |
| Terminals: | .250" faston |
| Dimensions (In): | 5.94 x 2.56 x 3.70 |
| Weight: | 6.17 lbs |
| Warranty: | 12 months |
| Condition: | Brand New |
| Design Life: | Standby 3-5 years |
Reviews
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4.7
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August 20, 2026 by William C. (TN, US)
“Easy and straight forward.”
August 20, 2026 by BobD (NY, US)
“Finding needed product and subsequent checkout process went very smooth.”
August 17, 2026 by Alan D. (MI, US)
“I was able to retrieve my order from 2024 and confirm the right product. Thanks.”
