Laptop battery Lenovo 38Wh 2-cell lithium-ion 5B11N56339 compatible replacement

Rechargeable laptop battery Lenovo 38Wh 2-cell lithium-ion model 5B11N56339 is a compatible replacement power source for select Lenovo notebooks. This two-cell Li‑ion pack supplies 38 watt‑hours of energy to restore battery runtime and maintain mobile use. It is intended as a direct replacement to return a laptop to portable operation when the original battery no longer holds adequate charge.

Advantages

The battery offers a compact two‑cell design that balances capacity and weight for everyday mobile use. Being a rechargeable lithium‑ion pack, it delivers a stable discharge profile and predictable performance across charge cycles. The replacement unit is manufactured to fit compatible Lenovo laptop housings and connector types, enabling straightforward installation without internal modifications.

Suitable for

• Replacing a worn or failed internal battery in compatible Lenovo notebooks
• Restoring battery runtime for mobile work and travel
• Users who need a direct form‑factor-compatible replacement pack
• Service and repair operations that require a standard two‑cell Li‑ion battery

Key specifications

• Battery chemistry: lithium‑ion (Li‑ion)
• Capacity: 38 Wh
• Cell count: 2 cells
• Intended use: laptop internal replacement battery
• Physical format: compact pack designed for compatible Lenovo laptop models

How to use

Turn off the laptop and disconnect it from any external power source before replacing the battery. Access the battery compartment following the laptop manufacturer’s service instructions or user manual; remove any securing screws or latches, disconnect the old battery from the internal connector, and install the replacement pack in the same orientation. Reconnect any connectors, secure the battery, reinstall covers or screws, and then charge the new battery fully before first use to calibrate runtime reporting.

Recommendations

For safe operation, use this Lenovo compatible battery only in laptops specified as compatible by the manufacturer. Avoid exposure to extreme temperatures, physical shock, or moisture. Charge with the laptop’s original charger or a compatible power adapter, and follow standard battery care: avoid deep discharges when possible, store at partial charge for long‑term storage, and replace the battery if swelling, overheating, or abnormal behavior occurs.