Battery Lenovo 3-cell lithium-ion 5B11F38035 — 3-cell rechargeable notebook battery

Replacement rechargeable 3-cell lithium-ion battery compatible with select Lenovo notebooks. This battery restores mobile runtime for everyday laptop tasks and connects to the notebook’s charging system for standard charging. It is intended as a direct-fit replacement or spare unit to maintain portable power for work, study, or travel without modifying the computer.

Advantages

The 3-cell lithium-ion design offers a balance of capacity and compact size, delivering continued power for common productivity tasks while preserving the notebook’s original fit and connector compatibility. Built to match the notebook’s charging protocol, it supports normal charging cycles and provides consistent output voltage for stable operation. The rechargeable chemistry reduces the need for frequent replacements compared with non-rechargeable options and is suitable for carrying as a spare.

Suitable for

• Replacing a worn or failing laptop battery
• Keeping as a spare for travel or field work
• Maintaining battery runtime for everyday office and study applications

Key specifications

• Battery type: 3-cell lithium‑ion rechargeable
• Compatibility: designed for compatible Lenovo notebooks
• Function: restores portable runtime and supports standard notebook charging
• Form factor: notebook battery with original-fit connector

How to use

Power off the notebook and disconnect the mains adapter before replacing the battery. Remove the existing battery according to the notebook manufacturer’s instructions, insert the replacement unit in the correct orientation until it locks in place, and reconnect the mains adapter. Charge the battery fully before first use to calibrate the battery gauge. Use the notebook’s power management settings to monitor charge level and health.

Recommendations

Store the battery in a cool, dry place when not in use and avoid prolonged exposure to high temperatures. For optimal lifespan, keep the battery charged between 20% and 80% during long-term storage and avoid deep discharges when possible.