Laptop battery Lenovo 45Wh 3-cell lithium model 5B11B96718

Replacement laptop battery Lenovo 45Wh 3-cell lithium model 5B11B96718 restores portable power for compatible Lenovo notebooks. This compact 3-cell battery delivers 45 watt-hours of capacity to support everyday tasks, mobile productivity and travel. It is intended as a direct replacement for worn or degraded batteries with matching connectors and physical fit; proper model compatibility should be verified before installation.

Advantages

The battery offers a balanced combination of capacity and compact size, enabling extended runtime without adding significant weight. As a factory-compatible design, it fits the specified Lenovo notebook models and connects using the original battery interface. The 3-cell lithium chemistry provides stable discharge characteristics and is suitable for standard laptop power management systems.

Suitable for

• Replacing an aged or failing battery in supported Lenovo notebooks
• Extending usable runtime for travel and remote work
• Restoring battery-backed mobile productivity for students and professionals

Key specifications

• Battery type: Lithium-ion, 3-cell configuration
• Rated energy: 45 Wh
• Form factor: Compact internal laptop battery designed for compatible Lenovo models
• Typical use: Standard laptop power supply for everyday computing tasks

How to use

Ensure the replacement battery is compatible with your specific Lenovo notebook model and that the device is powered off before beginning installation. Remove the service panel or back cover per the notebook manufacturer’s instructions, disconnect the old battery from its connector, and replace it with the new unit ensuring proper alignment and secure connection. Reassemble the notebook and charge the battery fully before first use to allow the device to recalibrate its battery reporting.

Recommendations

Use the battery in environments within the manufacturer's recommended temperature range, avoid exposure to excessive heat or moisture, and follow safe disposal or recycling practices for the removed battery. For optimal battery life, perform regular charge cycles, install firmware or power management updates from Lenovo, and verify connector seating during installation.