Laptop Battery for Dell 3400 5488 5493 5593 YRDD6 P90F 11.4V 40Wh 3-Cell Li-ion Battery High Capacity, CE/RoHS Certified, 12-Month Warranty

**Product Overview**
Upgrade or replace your worn-out Dell laptop battery with this high-performance 11.4V 40Wh 3-cell lithium-ion battery. Designed to match the original specifications of Dell Inspiron 3400, 5488, 5493, and 5593 series, it is also compatible with OEM replacement numbers YRDD6 and P90F. Whether you need a backup battery for travel or a permanent replacement for a degraded original, this battery delivers reliable power and long-lasting performance.

**Important Voltage Warning**
Please confirm your original battery voltage before purchasing. This battery is rated at ** 11.4V **. If your original battery is 11.4V, it is a direct replacement. If your original battery is 7.6V or 15.2V, this battery will NOT work with your device. Always check the voltage printed on your old battery or in your system BIOS to avoid compatibility issues.

**Compatible Laptop Models**
- Dell Inspiron 3400
- Dell Inspiron 5488
- Dell Inspiron 5493
- Dell Inspiron 5593
*(Note: Not compatible with models using different battery connectors or voltage ratings. Please verify your laptop model and battery part number before ordering. )*

**Compatible OEM Part Numbers**
- YRDD6
- P90F

**Battery Specifications**

| Specification |

Details

|
|---------------|---------|
| Battery Type | Lithium-ion (Li-ion) |
| Voltage | 11.4V |
| Capacity | 40Wh (typical) |
| Cells | 3 cells |
| Color | Black |
| Weight | Approx. 200g |
| Cycle Life | 500 charge cycles |
| Certification | CE, RoHS, FCC |
| Warranty | 12 months |

**Comparison Table Original vs Replacement**

| Feature | Original Dell Battery | This Replacement Battery |
|---------|----------------------|--------------------------|
| Voltage | 11.4V | 11.4V (identical) |
| Capacity | 40Wh | 40Wh (same) |
| Cell Count | 3 cells | 3 cells |
| Safety Protection | Yes | Yes (overcharge, over-discharge, short circuit, overheat) |
| Warranty | 12 months (from Dell) | 12 months (from seller) |
| Price | Higher | Affordable |

**Installation Tips**
1. **Power off** your laptop and disconnect the AC adapter.
2. Remove the bottom cover (screws may vary by model use a suitable screwdriver).
3. Locate the old battery and gently disconnect its cable from the motherboard.
4. Remove the old battery and insert the new one, ensuring the connector is fully seated.
5. Reattach the bottom cover and tighten screws.
6. Plug in the AC adapter and power on your laptop. The system will automatically recognize the new battery.
7. For best performance, fully charge the battery (to 100%) and then fully discharge it once before normal use.

**Package Includes**
- 1 x Replacement Battery ( 11.4V 40Wh)
- 1 x Installation Guide (basic steps)

**Customer Support**
If you have any questions about compatibility, installation, or performance, please contact us via eBay/Newegg messaging. We are committed to providing a 12-month warranty and friendly after-sales support.

**Note: ** This is a third-party replacement battery, not an original Dell product. It is designed to meet or exceed OEM specifications for safety and performance.