Ensure maximum runtime and dependable power performance with the Lenovo Internal Battery 90Wh 4-Cell 5B11B79218. A degraded battery can significantly reduce productivity due to short backup time—this high-capacity replacement restores long-lasting power efficiency.

Built with premium lithium-ion technology, this 90Wh battery delivers high energy density, stable voltage output, and extended cycle life. It is engineered for heavy workloads and long usage sessions while maintaining safe and consistent performance.

Installation / Replacement Instructions

1. Power off the laptop and disconnect all cables.
2. Remove the bottom cover carefully using proper tools.
3. Disconnect the old battery from the motherboard connector.
4. Remove the existing 5B11B79218 battery from its slot.
5. Install the new battery and secure all connections properly.
6. Reassemble the laptop and perform a full charge cycle.

Compatible with select Lenovo laptop models, this OEM-quality high-capacity battery ensures extended runtime and reliable performance.

Key Features

• High-capacity design for extended runtime
• Stable lithium-ion output for heavy usage
• Long cycle life for durable performance
• Protects system from unexpected shutdowns
• Compatible with select Lenovo laptop models
• OEM-quality replacement for reliable operation