Ensure reliable everyday performance for your Lenovo laptop with the 45Wh 3-Cell Battery 5B11B36279. A weak or failing battery can lead to reduced runtime and unexpected shutdowns—this replacement restores stable and efficient power delivery for daily computing needs.

Built with high-quality lithium-ion cells, this battery provides consistent energy output, efficient charging cycles, and dependable long-term durability. It is designed to support regular usage while maintaining stable performance and safety.

Installation / Replacement Instructions

1. Shut down the laptop and disconnect the charger.
2. Remove the bottom cover carefully using appropriate tools.
3. Disconnect the old battery from the motherboard connector.
4. Remove the existing 5B11B36279 battery from its compartment.
5. Install the new battery and reconnect it securely.
6. Reassemble the laptop and fully charge before first use.

Compatible with select Lenovo laptop models, this OEM-quality 45Wh battery ensures dependable performance and stable power backup.

Key Features

• Provides stable and efficient daily power backup
• High-quality lithium-ion cells for durability
• Supports consistent charging and discharge cycles
• Protects system from sudden power loss
• Compatible with select Lenovo laptop models
• OEM-quality replacement for safe operation