Laptop Battery for ASUS V505L A501LB5200 K501L B31N1429 11.4V 48Wh 4200mAh, Compatible with V505 Series, A501 Series, K501 Series, 2-Year Warranty

**Product Overview**
Upgrade your ASUS laptop with this high-performance replacement battery, specifically designed for the V505L, A501LB5200, K501L, and other compatible models. With a genuine 11.4V voltage and 48Wh capacity, it delivers the same runtime and reliability as the original, making it an ideal spare or direct replacement for worn-out batteries.

**Important Voltage Warning**
Please verify that your original battery is 11.4V (not 7.6V or 14.8V ). Using an incorrect voltage battery may cause system failure or damage. This battery is ONLY compatible with 11.4V ASUS models listed below.

**Compatible Models & Part Numbers**
- ASUS V505L Series: V505L, V505LA, V505LB, V505LX
- ASUS A501 Series: A501LB, A501LB5200, A501L
- ASUS K501 Series: K501L, K501LB, K501LX
- Battery Part Number: B31N1429

**Specifications Table**
| Specification | Value |
|---------------|-------|
| Battery Type | Li-ion |
| Voltage | 11.4V |
| Capacity | 48Wh / 4200mAh |
| Cell Quality | Grade A+ |
| Color | Black |
| Weight | Approx. 280g |
| Dimensions | 270 x 60 x 5.5 mm (check fit with your laptop) |
| Warranty | 2 Years |

**Comparison Table: Original vs. Replacement**
| Feature | Original ASUS Battery | Our Replacement Battery |
|---------|----------------------|------------------------|
| Voltage | 11.4V | 11.4V (exact match) |
| Capacity | 48Wh | 48Wh (equal performance) |
| Cell Grade | Standard | Grade A+ (higher cycle life) |
| Safety Protections | Yes | Overcharge/over-discharge/short-circuit |
| Warranty | 1 year | 2 years |
| Price | High | Affordable |

**Installation Tips**
1. Power off your laptop and unplug the AC adapter.
2. Remove the back cover (screws may be required; refer to your laptop manual).
3. Disconnect the old battery cable and gently lift it out.
4. Insert the new battery, connect the cable, and secure the cover.
5. Charge the battery fully before first use for optimal calibration.

**Package Includes**
- 1 x Replacement Battery for ASUS V505L/A501LB5200/K501L
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**Note**
If your laptop model is not listed, please contact us with your original battery part number (B31N1429) to confirm compatibility. Avoid using third-party chargers to ensure battery longevity.

**Why Choose Us? **
We specialize in laptop batteries for eBay and Newegg, with thousands of satisfied customers. Each battery undergoes strict quality control and is backed by a 2-year warranty and friendly customer service. Order with confidence today!