Battery Lenovo 3-cell Li-ion 45Wh replacement for notebooks, model 5B10K88048

Rechargeable 3-cell Li‑ion battery with 45Wh capacity, designed as a direct replacement for compatible Lenovo notebooks. This battery restores portable power for extended mobile use, supporting standard charging cycles and intended for safe operation when installed according to the notebook manufacturer’s instructions. It is compact and intended to match the physical dimensions and electrical characteristics of compatible laptop models so that it integrates seamlessly as a service or spare part.

Advantages

This replacement battery offers a 45Wh energy capacity in a lightweight 3‑cell Li‑ion design that balances runtime and portability. It is intended to provide consistent voltage for typical notebook workloads and supports normal charging/discharging behavior to maintain battery health when used with the host device’s charging system. The design focuses on compatibility, safe chemistry, and straightforward installation to replace worn or degraded original batteries.

Suitable for

• Replacing a worn or failing notebook battery to restore runtime
• Mobile work and travel when mains power is not available
• Temporary backup power between charges for office or home use

Key specifications

• Battery type: Lithium‑ion (Li‑ion), 3 cells
• Nominal energy: 45 Wh
• Form factor: notebook replacement pack, designed to fit compatible Lenovo laptop housings
• Typical use: portable computer power for mobile productivity and light multimedia
• Safety features: standard Li‑ion protection recommended by OEM for charge/discharge management

How to use

Power down the notebook and disconnect any external power supply before replacing the battery. Remove the existing battery following the notebook manufacturer’s service instructions or user manual, then install the replacement pack ensuring correct alignment with contacts and secure fastening. After installation, connect the mains adapter and allow the battery to charge to full capacity; the host device will manage charging cycles. Observe the notebook’s battery indicator or management software to confirm proper operation.

Recommendations

Use the battery only in compatible Lenovo notebook models, follow the laptop manufacturer’s guidelines for installation and charging, and avoid exposure to extreme temperatures, moisture, or physical damage. For optimal lifespan, keep the battery charged between roughly 20% and 80% during regular use and store it at a partial charge if not used for extended periods.