Replacement Battery for Lenovo Z501 G400S L12M4A02 L12L4A02 L12S4A02 E01 11.1V 2200mAh 24Wh High Capacity, CE/RoHS Certified, 12-Month Warranty

**Important
Voltage Warning: **
Please confirm your original battery voltage is ** 11.1V ** before purchasing. Using an incorrect voltage battery may damage your device or cause safety hazards. If your original battery is 10.8V or 14.4V, this product is NOT compatible.

**Compatible Laptop Models (including but not limited to): **
- Lenovo Z501 (all sub-models)
- Lenovo G400S (all sub-models)
- Lenovo G500S, G505S, G700S, G710S (check voltage first)
- Lenovo B590, B490 (verify physical fit)

**Replacement Part Numbers: **
L12M4A02, L12L4A02, L12S4A02, L12M4E01, L12L4E01, L12S4E01, L12M4A02/E01, L12L4A02/E01, L12S4A02/E01

**Specifications Table: **
| Parameter | Value |
|-----------|-------|
| Battery Type | Li-ion (Lithium-ion) |
| Voltage | 11.1V |
| Capacity | 2200mAh / 24Wh |
| Cell Quality | Grade A+ |
| Cycle Life | 500 cycles |
| Safety Certifications | CE, RoHS |
| Warranty | 12 months |

**Comparison Table (Original vs.
Replacement): **
| Feature | Original Lenovo Battery | Our Replacement |
|---------|------------------------|-----------------|
| Voltage | 11.1V | 11.1V (identical) |
| Capacity | 2200mAh | 2200mAh (same) |
| Cell Grade | Standard | A+ (higher quality) |
| Safety Protection | Basic | Overcharge/Discharge/Short/Overheat |
| Warranty | Limited | 12 months (longer coverage) |

**Installation Tips: **

1. Power off your laptop and unplug the AC adapter.

2. Remove the battery from the bottom compartment (no tools required for most models).

3. Insert the new battery until it clicks securely into place.

4. Charge the battery fully (about 34 hours) before first use for optimal performance.

5. If the battery is not recognized, restart your laptop once.

**Note: ** Battery performance may vary based on usage, settings, and age of device. Avoid exposing the battery to extreme temperatures or moisture.

**Package Includes: **
1 x Replacement Battery (L12M4A02/L12L4A02/L12S4A02 compatible)

**Why Choose Us? **
We specialize in laptop batteries for eBay & Newegg with years of export experience. Every battery is tested for capacity, voltage, and safety before shipping. Your satisfaction is our priority contact us anytime for support.