CyberPower RB1280A teardown
- Inside
- 1 x 12 V 9 Ah
- Wiring
- 12 V single
- List price
- $53
- Cell size
- 151 x 65 x 94 mm
- Terminal
- F2
- Evidence on cell count
- verified
What is inside the RB1280A?
RB1280A holds one 12 V block rated 9 Ah, giving a 12 V bus. CyberPower publishes the cell count. There is no series string to balance, so it is the simplest swap here. Check the label on your old block before ordering a replacement.
| Field | Value | Quote | Source |
|---|---|---|---|
| cells | 1 | Battery Quantity | 1 | T1 cyberpowersystems.com |
| cell ah | 9 | contains one 12V/9AH battery | T1 cyberpowersystems.com |
| envelope mm | 151 x 98 x 65 | (mm) | 151 x 98 x 65 (mm) | T1 cyberpowersystems.com |
| msrp usd | 53 | MSRP | $53 | T1 cyberpowersystems.com |
| terminal | F2 | Compatibility: Cyberpower RB1280A Condition: New, Fresh Stock Includes: (1) 12V 9Ah Battery with F2 terminals | T2 upsbatterycenter.com |
Which UPS models use the RB1280A?
Of the 35 models we track, RB1280A fits CP850PFCLCD. That list comes from the manufacturer's pages, and they sometimes disagree with reseller listings. Where a model splits by serial number, its UPS page shows which prefix takes this cartridge, so check your label before you order.
| UPS | Rating | Serial condition |
|---|---|---|
| CP850PFCLCD | 850 VA / 510 W | Serial starts CQD |
Which bare cells replace the RB1280A?
Replace RB1280A with one 12V 9 Ah F2 cell and reuse the factory harness. CyberPower lists 151 x 98 x 65 mm. The terminal comes from a retailer cross-reference or inference, so check your old cell first. Keep the old harness, because bare cells ship without leads.
Can LiFePO4 replace the RB1280A?
A 12.8 V LiFePO4 pack fits the RB1280A bay, but its BMS sets the limit. A 12 A BMS allows about 118 W on this 12 V bus. A single pack has no series balance problem to manage. Measure your real load before you buy.
At the listing's 20 A claim the ceiling is 197 W, and at 12 A it is 118 W. Why that matters.
How much does the RB1280A cost against bare cells?
RB1280A lists at $53. One bare cell costs about $34.94 at a non-Amazon single-unit reference price, a saving of roughly 34%. The reference is a CSB block at one store, and it is not an Amazon price. Reusing the harness is what makes this work.
Official RB1280A MSRP: $53. Typical Commodity Bare-Cell Band (Non-Amazon Reference): about $34.94 for 1 x CSB HR1234WF2. Reuse your factory wire harness to save about 34% against the OEM cartridge MSRP.