Which laptops does 826388-001 fit? 826388-001 (HP RTC battery) is documented to fit 5 laptop models, including HP ProBook 430 G3, HP ProBook 440 G3 and HP ProBook 470 G3 and 2 more. Fits come from OEM documentation (HP page), last checked 2026-11-12; not bench-tested. Full compatibility list.
HP spare part description: "RTC battery". 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 430 G3 All RTC battery for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 440 G3 All RTC battery for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 470 G3 All RTC battery for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 455 G3 All RTC battery for this model | HP | 2026-11-04 | OEM documented |
| HP ProBook 450 G3 All RTC battery for this model | HP | 2026-11-12 | OEM documented |
HP description: "RTC battery". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, Document Part Number 824551-001 (copy saved from support.hp.com), PDF pages 33, 79: "826388-001" (RTC battery). (via MG fold)
HP description: "RTC battery". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide, Document Part Number 824566-001 (copy saved from support.hp.com), PDF page 75: "826388-001" (RTC battery). (via MG fold)
HP description: "RTC coin cell battery fitted to the system board". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04825507, PDF pages 81, 29: "826388-001" (RTC coin cell battery fitted to the system board). (via MG-28/MG-51 fold)
HP description: "Real-time clock battery for the system board". OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04825528, PDF page 80: "826388-001" (Real-time clock battery for the system board). (via MG-28/MG-51 fold)
HP spare part: RTC battery. OEM documentation only; not bench-tested.
HP Maintenance and Service Guide c04825517, PDF page 32: "10) RTC battery 826388-001". The fetched guide names this part for this model. (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 430 G3 | HP | Business laptop |
| HP ProBook 440 G3 | HP | Business laptop |
| HP ProBook 470 G3 | HP | Business laptop |
| HP ProBook 455 G3 | HP | Business laptop |
| HP ProBook 450 G3 | 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
826388-001