Notebook battery Lenovo 5B10Q38238 48Wh 4‑cell 6268mAh

Replacement notebook battery Lenovo 5B10Q38238 48Wh 4‑cell 6268mAh is a direct-fit power module designed to restore portable runtime in compatible Lenovo laptops. This OEM-style battery provides the rated energy capacity and cell count to match the original specification, enabling mobile operation when mains power is unavailable and returning a device to expected on-battery performance. Installation is intended as a direct swap for models that accept this battery form factor.

Advantages

This battery delivers a 48Wh capacity with 4 individual cells, offering a balance between runtime and physical size. It is manufactured to meet the electrical and mechanical requirements of compatible Lenovo notebooks, ensuring reliable voltage and discharge behavior for typical laptop tasks. As a replacement unit, it helps avoid abrupt shutdowns, supports consistent charging cycles, and restores the ability to use the laptop during travel or extended periods away from an outlet.

Suitable for

• Replacing an aged or degraded battery in compatible Lenovo laptops
• Maintaining mobile productivity during travel, commuting or field work
• Using as a spare or backup battery to extend time between charges

Key specifications

• Energy capacity: 48Wh
• Cell count: 4 cells
• Rated charge capacity: 6268mAh
• Intended use: notebook/laptop internal battery
• Form factor: OEM replacement compatible with designated Lenovo models

How to use

Power down the laptop and disconnect any external power supply before starting. Remove the service hatch or bottom cover as required by the laptop model and carefully detach the old battery following manufacturer instructions. Align the replacement battery with the connector and mounting points, insert it until it seats securely, and reassemble the cover. Recharge the battery fully before first use to allow the battery management system to register capacity; normal charging and discharging procedures apply thereafter.

Recommendations

Operate and charge the battery within the laptop manufacturer’s specified temperature and charging conditions. Avoid extended storage at full charge or fully discharged states; for long-term storage, store at around 40–60% charge in a cool, dry place. If the laptop supports battery calibration or diagnostics, run those tools periodically to monitor health and achieve accurate remaining-time estimates.