Which laptops does 651948-001 fit? 651948-001 (HP RTC battery) is documented to fit 8 laptop models, including HP ProBook 645 G1, HP ProBook 655 G1 and HP ProBook 640 G2 and 5 more. Fits come from OEM documentation (HP service guide), last checked 2026-11-12; not bench-tested. Full compatibility list.
HP spare part description: "RTC battery with cable and adhesive". Documented OEM replacement; see each fit for configuration limits.
Devices documented to accept this OEM component. Compatibility from OEM documentation or a labelled source, with a confidence level on each fit; not bench-tested.
| Model | Brand | Last checked | Confidence |
|---|---|---|---|
| HP ProBook 645 G1 All RTC battery for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 655 G1 All RTC battery for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 640 G2 All RTC battery for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 645 G2 All RTC battery for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 650 G2 All RTC battery for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 655 G2 All RTC battery for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 640 G1 All RTC battery for this model | HP | 2026-11-12 | Mostly documented (90–99%) |
| HP ProBook 650 G1 All RTC battery for this model | HP | 2026-11-12 | Mostly documented (90–99%) |
HP description: "RTC battery with cable and adhesive". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04823617, PDF pages 52, 113: "651948-001" (RTC battery with cable and adhesive). (via MG fold)
HP description: "RTC battery with cable and adhesive". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04823617, PDF pages 52, 113: "651948-001" (RTC battery with cable and adhesive). (via MG fold)
HP description: "RTC battery including cable". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF pages 33, 78: "651948-001" (RTC battery including cable). (via MG fold)
HP description: "RTC battery including cable". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF pages 33, 78: "651948-001" (RTC battery including cable). (via MG fold)
HP description: "RTC battery including cable". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF pages 33, 78: "651948-001" (RTC battery including cable). (via MG fold)
HP description: "RTC battery including cable". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, PDF pages 33, 78: "651948-001" (RTC battery including cable). (via MG fold)
HP spare part: RTC battery (includes cable and double-sided adhesive). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04823617, PDF page 52: "RTC battery (includes cable and double-sided adhesive) 651948-001". Content match to the fetched guide. (via v10 fold 2026-11-12)
HP spare part: RTC battery (includes cable and double-sided adhesive). OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04823617, PDF page 52: "RTC battery (includes cable and double-sided adhesive) 651948-001". Content match to the fetched guide. (via v10 fold 2026-11-12)
Summary of the documented fits above (sources on each model card); not bench-tested.
| Model | Brand | Type |
|---|---|---|
| HP ProBook 645 G1 | HP | Business laptop |
| HP ProBook 655 G1 | HP | Business laptop |
| HP ProBook 640 G2 | HP | Business laptop |
| HP ProBook 645 G2 | HP | Business laptop |
| HP ProBook 650 G2 | HP | Business laptop |
| HP ProBook 655 G2 | HP | Business laptop |
| HP ProBook 640 G1 | HP | Business laptop |
| HP ProBook 650 G1 | HP | Business laptop |
Fit check: Always confirm the OEM part/FRU number on your machine's label or in the service manual before buying. HP service guide
651948-001