Eaton G2 3K UPS System Battery
OSI Batteries is your One Source for Eaton UPS System replacement batteries. CP1290 is a high quality aftermarket battery that fits Eaton G2 3K model uninterruptible power supply systems.
Eaton G2 3K Requires 6 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.
Eaton G2 3K Requires 6 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
We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
4.7
Out of 5.0
Overall Rating
96%
of customers that buyfrom this merchant give
them a 4 or 5-Star rating.
June 23, 2026 by Andrew K. (NJ, US)
“Fairly straightforward”
June 23, 2026 by Ty P. (TX, US)
“Easy so far”
June 23, 2026 by John E. (FL, US)
“Good”
