Laptop Battery for Dell E7420 E7440 E7450 3RNFD 47WH 54WH 11.4V 5200mAh, Compatible with Latitude 7000 Series, 2-Year Warranty

**Product Overview**
Upgrade your Dell Latitude E7420, E7440, or E7450 with a reliable, high-capacity replacement battery. This 60WH (5200mAh) battery is engineered to meet or exceed original specifications, offering extended usage time for professionals, students, and travelers. Whether youre replacing a worn-out 47WH or 54WH battery, this model delivers consistent performance and a perfect fit.

**Important Voltage Warning**
Please confirm your original battery voltage is 11.4V before purchasing. This battery is NOT compatible with 7.6V or 14.8V models. Using an incorrect voltage may cause system instability or damage. Check your battery label or system BIOS for voltage details.

**Compatible Models & Part Numbers**
- Laptop Models: Dell Latitude E7420, E7440, E7450 (all sub-configurations)
- OEM Part Numbers: 3RNFD, 0RNFD, 451-11786, 451-11787, 451-11788, 451-11789, 451-11790, 451-11791
- Capacity Options Replaced: 47WH (4-cell) and 54WH (6-cell) this is a 60WH upgrade

**Specifications Table**
| Parameter | Value |
|-----------|-------|
| Battery Type | Li-ion |
| Voltage | 11.4V |
| Capacity | 5200mAh / 60WH |
| Cells | 6-cell |
| Color | Black |
| Weight | ~320g |
| Dimensions | 205 x 80 x 20 mm |
| Certification | CE, FCC, RoHS |

**Comparison Table: Original vs. Replacement**
| Feature | Original 47WH | Original 54WH | This Replacement (60WH) |
|---------|---------------|---------------|-------------------------|
| Capacity | 47WH | 54WH | 60WH (higher) |
| Runtime (Typical) | ~4-5 hours | ~5-6 hours | ~6-7 hours |
| Price | Higher (OEM) | Higher (OEM) | Cost-effective |
| Warranty | 1 year | 1 year | 2 years |

**Installation Tips**
1. Power off your laptop and disconnect the AC adapter.
2. Remove the battery latch or unscrew the bottom panel (depending on model).
3. Gently disconnect the old battery cable and lift it out.
4. Insert the new battery, connect the cable, and secure the latch/screws.
5. Charge fully (3-4 hours) before first use for optimal calibration.
6. If the battery is not recognized, check connection or reset BIOS settings.

**Package Includes**
- 1 x Replacement Battery



**Customer Support**
We offer 24/7 email support and a 2-year warranty against defects. If you have any questions about compatibility or installation, please contact us before returning. Your satisfaction is our priority.