Product Overview
The 8858X / T54FJ is a reliable 6-cell 48Wh Li-ion replacement battery designed for Dell Latitude E5420, E5520, E6420, and E6520 series laptops. It also fits Inspiron 14R, 15R, and 17R (N5110/N7110) models. Built with premium cells to restore stable mobile runtime for business and travel. Features integrated smart protection against overcharge and short circuits. Ships 100% brand new with a 1-year warranty.
Technical Specifications
| Standard Model | 8858X / T54FJ / 911MD |
|---|---|
| Capacity | 48Wh / 4400mAh |
| Voltage | 11.1V (Compatible with 10.8V) |
| Battery Type | Li-ion (6-Cell) |
| Condition | 100% Brand New Replacement |
| Warranty | 1 Year |
Replace Part Numbers
- 8858X
- T54FJ
- 911MD
- M5Y0X
- HCJWT
- 312-1163
- 04NW9
- 312-1242
- NHXVW
Compatible Laptop Models
- Dell Latitude E5420 / E5430
- Dell Latitude E5520 / E5530
- Dell Latitude E6420 / E6430
- Dell Latitude E6520 / E6530
- Dell Inspiron 14R / 15R / 17R Series
FAQ
Q: Is this battery compatible with the Latitude E6430?
A: Yes. The 8858X / T54FJ is the standard replacement battery for the E6430, E6420, E5430, and E5420 series. Please verify the part number on your original battery.
Q: What is the expected runtime for this 6-cell pack?
A: Under standard power settings, this 48Wh battery typically provides 3-5 hours of runtime for mixed productivity and web browsing.