Product Summary: The RYXXH is a professional-grade 11.1V 38Wh Li-polymer replacement battery specifically designed for Dell Latitude E5250, E5450, and E5550 business laptops. Restore your mobile productivity with Grade-A cells and a 1-year warranty.
Product Specifications
| Battery Model: | RYXXH / 9P4D2 |
| Voltage: | 11.1V |
| Capacity: | 3423mAh / 38WH |
| Battery Type: | Li-polymer (3-cell) |
| Cell Grade: | Grade-A High Performance |
| Condition: | Replacement Battery (100% Brand New, 1-year warranty!) |
Replace Part Numbers
- RYXXH
- 09P4D2
- 9P4D2
- 05TFCY
- 0YD8XC
- HSTNN-LB6K
Compatible Laptop Models
- Dell Latitude E5250
- Dell Latitude E5450
- Dell Latitude E5550
- Dell Latitude 11 3150
- Dell Latitude 11 3160
Expert FAQ for Latitude Users
- Q: Why is RYXXH not interchangeable with 6MT4T?
- A: While they belong to the same laptop generation, RYXXH (11.1V) and 6MT4T (7.6V) use different voltage and cell configurations. Using the wrong model can damage your motherboard.
- Q: How should I calibrate my new Dell battery?
- A: We recommend 3 full charge/discharge cycles (100% to 5%) to synchronize the internal battery management system for accurate runtime reporting.