Laptop Battery for Lenovo S2 Yoga 2018 01AV481 L380 L390 Yoga L17L3P53 11.4V 45Wh 4-Cell, High Capacity Compatible with 5B10W13969 5B10W13970, 12-Month Warranty

**Product Overview**
Upgrade or replace your worn-out laptop battery with this premium-grade replacement designed specifically for Lenovo S2 Yoga 2018, L380, L390, and Yoga L17L3P53 series. Whether you are a remote worker, student, or frequent traveler, this 45Wh battery provides the reliable backup power you need to stay productive on the go. Say goodbye to sudden shutdowns and low-battery anxiety restore your laptops original runtime with this high-quality, factory-tested replacement.

**Important Voltage Warning**
Please verify that your original battery voltage is ** 11.4V ** before purchasing. Using an incorrect voltage (e. g., 7.6V or 15.2V ) may cause damage to your device or battery. This battery is **NOT** compatible with 7.6V or 14.4V models. Always check your laptops original battery label or system information to confirm compatibility.

**Compatible Models & Part Numbers**
This battery is a direct replacement for the following Lenovo laptop models and original part numbers:

- **Laptop Models: **
Lenovo S2 Yoga 2018 (Type 20L9, 20LA)
Lenovo ThinkPad L380 Yoga
Lenovo ThinkPad L390 Yoga
Lenovo Yoga L17L3P53

- **Original Part Numbers: **
01AV481, 5B10W13969, 5B10W13970, L17L3P53

**Technical Specifications**

| Specification |

Details

|
|---------------|---------|
| Battery Type | Li-ion (Lithium-ion) |
| Voltage | 11.4V |
| Capacity | 45Wh / 3950mAh |
| Cells | 4-cell |
| Color | Black |
| Connector | 4-pin (specific to listed models) |
| Dimensions | Approx. 270 x 80 x 8 mm (varies slightly by model) |
| Weight | Approx. 250g |
| Warranty | 12 Months |

**Comparison Table: Original vs. This Replacement**

| Feature | Original Lenovo Battery (01AV481) | This Replacement Battery |
|---------|-----------------------------------|--------------------------|
| Voltage | 11.4V | 11.4V (Exact Match) |
| Capacity | 45Wh | 45Wh (Equal or Higher) |
| Safety Certifications | Lenovo Standard | CE, FCC, RoHS |
| Price | High (OEM) | Affordable (Aftermarket) |
| Warranty | 12 Months (OEM) | 12 Months (Our Warranty) |

**Installation Tips**
1. **Power
Off & Unplug: ** Shut down your laptop completely and disconnect the AC adapter before opening the case.
2. **Ground
Yourself: ** Touch a metal surface to discharge static electricity to avoid damaging internal components.
3. **Locate the
Battery: ** On most S2 Yoga / L380 / L390 models, the battery is secured by a few screws on the bottom panel.
4. **Disconnect
Old Battery: ** Gently unplug the connector from the motherboard, then remove the old battery.
5. **Install
New Battery: ** Align the new battery connector and press firmly until it clicks. Secure with screws.
6. **Test: ** Reattach the bottom cover, power on, and check the battery status in your operating system.

**Package Includes**
- 1 x Replacement Battery ( 11.4V 45Wh)
-
(with installation guide)

**Customer Support**
We are committed to your satisfaction. If you have any questions about compatibility, installation, or performance, please contact us via eBay/Newegg messaging. We typically respond within 24 hours and will resolve any issues promptly.

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