Battery Lenovo 4-cell 52.5Wh lithium-ion 5B10W51867 for compatible Lenovo laptops

Lenovo 4-cell 52.5Wh lithium-ion replacement battery provides portable power for compatible Lenovo laptops. Designed as a direct replacement, this battery delivers balanced capacity and weight for everyday mobility, supporting office applications, web browsing and media playback. Its compact 4-cell construction is intended to fit in the same battery bay as the original and restore on‑the‑go runtime without changing laptop performance characteristics.

Advantages

This 52.5Wh lithium-ion battery offers a combination of usable capacity and low weight suitable for daily laptop use. The cell design supports consistent voltage output for stable system operation during typical tasks. As a replacement battery, it enables quick restoration of mobile runtime and reduces the need for constant mains connection. The compact form factor helps keep laptop size and balance unchanged while providing reliable charge/discharge cycles when used according to manufacturer guidelines.

Suitable for

• Office work and productivity applications
• Web browsing and video streaming
• On‑the‑go use and mobile work sessions
• Replacing worn or degraded laptop batteries

Key specifications

• Battery type: Lithium‑ion
• Cell configuration: 4‑cell
• Nominal capacity: 52.5 Wh
• Intended use: Compatible Lenovo laptop models (internal replacement)
• Typical functions: Powering laptop for everyday tasks such as office apps, browsing and media playback
• Form factor: Compact OEM replacement style designed for internal mounting

How to use

Turn off the laptop and disconnect any external power before attempting battery replacement. Remove the existing battery following the laptop manufacturer's instructions, replace with the new 4-cell battery and secure any latches or covers. After installation, plug in the AC adapter and perform a full charge cycle before relying on battery-only operation. Ensure the battery seating and connector alignment are correct to avoid connection issues.

Recommendations

Use the battery within the laptop's specified temperature range and avoid deep discharges when possible. Charge regularly during storage and follow Lenovo's maintenance guidance for best cycle life. Dispose of the old battery at an appropriate recycling facility in accordance with local regulations.