Laptop Battery for Lenovo YOGA C940-14IIL 81Q9 L18M4PH0 L18C4PH0 15.36V 60Wh 4-Cell

**Product Overview**
This high-performance replacement battery is engineered specifically for the Lenovo YOGA C940-14IIL (Model 81Q9) series. Whether you are a student, remote worker, or frequent traveler, our battery restores your laptops original mobility and eliminates the frustration of constant charging. Manufactured with premium-grade lithium-ion cells, it provides stable power output and long cycle life.

**Important Voltage Warning**
Please verify your original battery voltage before purchasing. This battery is rated at ** 15.36V (4-Cell)**. It is NOT compatible with 11.4V, 11.55V, or 7.6V models. Using an incorrect voltage battery may damage your device or cause safety hazards. Check your original battery label for voltage and model number.

**Compatible Models & Part Numbers**
- Laptop Models: Lenovo YOGA C940-14IIL, YOGA C940-14IIL 81Q9, YOGA C940-14IIL 81Q9000XUS, YOGA C940-14IIL 81Q9000UUS
- Replacement Part Numbers:
L18M4PH0, L18C4PH0, L18L4PH0, L18D4PH0, L18M4PH1, L18C4PH1, L18L4PH1, L18D4PH1, SB10K97584, SB10K97585, 5B10W13937, 5B10W13938

**Technical Specifications**
| Specification | Value |
|---------------|-------|
| Chemistry | Lithium-Ion (Li-ion) |
| Voltage | 15.36V (Nominal) |
| Capacity | 60Wh / 3900mAh |
| Cells | 4-Cell |
| Color | Black |
| Weight | Approx. 280g |
| Dimensions | 275 x 75 x 7mm (exact OEM fit) |
| Cycle Life | 500+ charge cycles |

**Comparison Table: Original vs. Our Replacement**
| Feature | Original Lenovo Battery | Our Replacement Battery |
|---------|------------------------|------------------------|
| Voltage | 15.36V | 15.36V (Exact Match) |
| Capacity | 60Wh | 60Wh (100% Equal) |
| Safety Certifications | Yes | CE, FCC, RoHS |
| Warranty | 12 months (limited) | 12 months (full coverage) |
| Price | High (OEM) | Affordable (Premium Quality) |

**Installation Tips**
1. Power off your laptop and disconnect the AC adapter.
2. Remove the bottom cover (Phillips #0 screwdriver required).
3. Disconnect the old battery cable from the motherboard.
4. Remove the old battery (held by screws or adhesive).
5. Insert the new battery, reconnect the cable, and close the cover.
6. Charge the battery to 100% before first use for optimal calibration.
7. If your laptop does not detect the battery, hold the power button for 15 seconds to reset the system.

**Package Includes**
- 1x Replacement Battery (pre-installed with protective film)
-


**Warranty & Support**
We stand behind our product with a 12-month warranty and 30-day hassle-free return policy. If you have any compatibility questions or installation issues, contact our customer service team for prompt assistance.

**Note: ** This is a third-party replacement battery, not an original Lenovo product. It is fully tested and guaranteed to meet or exceed OEM performance standards.