Battery for ASUS Y483L X455L R455L W419L A455L VM410L Series, 11.4V 38Wh C21N1401, High Capacity & Long Cycle Life 12-Month Warranty

**Product Overview**
Upgrade your ASUS laptop with this premium replacement battery, specifically designed for the Y483L, X455L, R455L, W419L, A455L, VM410L series and compatible with original part number C21N1401. Whether your current battery wont hold a charge, drains quickly, or causes unexpected shutdowns, this high-capacity 11.4V 38Wh battery restores your laptops portability and performance.

**Important Voltage Warning**
Please verify that your original battery voltage is ** 11.4V ** (not 10.8V or 14.8V ). Using an incorrect voltage battery may cause charging failure, system instability, or damage to your laptop. If your original battery is 10.8V, this 11.4V battery is generally compatible (most ASUS laptops accept the slight voltage difference), but we recommend checking your device manual or contacting us for confirmation.

**Compatible ASUS Laptop Models (Partial List) **
- ASUS Y483L Series
- ASUS X455L Series
- ASUS R455L Series
- ASUS W419L Series
- ASUS A455L Series
- ASUS VM410L Series

**Compatible Battery Part Numbers**
C21N1401

**Product Specifications**
| Parameter | Value |
|-----------|-------|
| Battery Type | Lithium-Ion (Li-ion) |
| Voltage | 11.4V |
| Capacity | 38Wh / 3300mAh |
| Color | Black |
| Cell Quality | Grade A+ cells |
| Protection | Overcharge, over-discharge, short circuit, over-temperature |
| Certifications | CE, FCC, RoHS |
| Warranty | 12 Months |

**Comparison Table: Old vs. New Battery**
| Feature | Old/Degraded Battery | Our Replacement Battery |
|---------|----------------------|-------------------------|
| Charge Retention | Holds charge for <30 min | Holds charge for 2-4 hours (depending on usage) |
| Cycle Life | <200 cycles | > 500 cycles |
| Safety Protection | May swell or overheat | Built-in multiple protection IC |
| Warranty | None or expired | 12-month full warranty |

**Installation Tips**
1. Shut down your laptop and unplug the AC adapter.
2. Remove the battery compartment cover (if applicable) or unscrew the bottom panel.
3. Disconnect the old battery cable and remove the battery.
4. Insert the new battery, connect the cable, and secure the cover.
5. Charge the battery fully before first use (about 3-4 hours).
6. For best performance, calibrate the battery once a month: fully charge, then fully discharge to 5%, and recharge to 100%.

**Package Includes**
1 x Replacement Battery (C21N1401)
1 x Installation Guide (English)

**Note: ** This is a third-party replacement battery, not an original ASUS product. It is fully tested and guaranteed to meet or exceed OEM specifications. If you have any questions about compatibility, please contact us with your laptop model and original battery part number.