Battery for Lenovo ThinkPad X1C Yoga Gen 4 L18M4P72 L18M4P71 2019/2020 Model 15.2V 51Wh, High Capacity, 1-Year Warranty

**Important
Voltage Warning: **
This battery is designed specifically for Lenovo ThinkPad X1 Carbon Yoga Gen 4 (2019/2020) models. Please confirm your original battery voltage is ** 15.2V ** before purchasing. Using an incorrect voltage may damage your device.

**Compatible Models: **
- Lenovo ThinkPad X1 Carbon Yoga Gen 4 (2019/2020)
- Lenovo ThinkPad X1 Yoga Gen 4 (2019/2020)

**Replaces OEM Part Numbers: **
L18M4P72, L18M4P71, SB10K97524, SB10K97525, 5B10W13937, 5B10W13938

**Specifications: **
| Parameter | Value |
|-----------|-------|
| Voltage | 15.2V |
| Capacity | 51Wh / 3400mAh |
| Cell Type | Lithium-ion (Li-ion) |
| Color | Black |
| Weight | Approx. 220g |
| Warranty | 1 Year |

**Comparison Table (Original vs Replacement): **
| Feature | Original Battery | Our Replacement |
|---------|-----------------|----------------|
| Voltage | 15.2V | 15.2V (Exact Match) |
| Capacity | 51Wh | 51Wh (Equal or Higher) |
| Safety | OEM Standard | Overcharge/Short Circuit/Overheat Protection |
| Price | High | Affordable |
| Warranty | Limited | 1-Year Full Warranty |

**Installation Tips: **

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

2. Remove the bottom cover using a Phillips screwdriver (screws may be hidden under rubber feet).

3. Disconnect the old battery cable from the motherboard.

4. Remove the old battery and insert the new one, aligning the screw holes.

5. Reconnect the battery cable, replace the bottom cover, and tighten screws.

6. Charge the battery fully before first use for optimal performance.

**Note: ** If your laptop shows a Battery Not Detected error, please reset the system by holding the power button for 15 seconds after installation.

**Package Includes: **
1 x Replacement Battery

1 x Installation Guide

**Compatibility Guarantee: **
This battery is 100% compatible with the listed models and part numbers. If you have any questions, please contact us before purchasing.