Battery MITSU for Lenovo T440 / X240, 4400 mAh, 10.8–11.1 V, replacement (MPN BC/LE-T440)

The MITSU replacement battery for Lenovo T440 and X240 laptops is a reliable power solution designed to restore the portability and runtime of your device. Engineered to meet the specific power requirements of compatible ThinkPad models, this battery offers a capacity of 4400 mAh and operates at a nominal voltage of 10.8–11.1 V. It is built to integrate seamlessly into the original battery compartment, ensuring a secure fit and consistent performance for daily computing tasks.

Advantages

This replacement battery provides a cost-effective way to extend the life of your laptop without compromising on compatibility. By utilizing high-quality cells, it maintains stable power delivery and supports the standard power management features of your Lenovo system. The design ensures that the battery fits perfectly into the existing housing, allowing for a straightforward installation process that does not require specialized tools or technical modifications.

Suitable for

• Restoring battery life for Lenovo T440 and X240 laptops
• Users requiring a reliable secondary or replacement power source
• Maintaining productivity during travel or remote work sessions

When it may not be suitable

This battery is specifically engineered for the mentioned Lenovo models and is not compatible with other laptop series or brands. It may not be suitable for users seeking extended-life batteries with higher capacities than the original factory specifications.

Key specifications

• Capacity: 4400 mAh
• Voltage: 10.8–11.1 V
• Energy: 48 Wh
• Compatibility: Lenovo T440 and X240 series

How to use

To install the battery, first ensure that your laptop is completely powered off and disconnected from the AC adapter. Remove the existing battery by releasing the locking mechanism on the underside of the laptop. Insert the new MITSU battery into the compartment until it clicks securely into place. Once installed, connect your charger and allow the battery to reach a full charge before using the laptop on battery power for the first time.

What to consider before purchase

• Verify your laptop model number matches the compatibility list
• Check the voltage requirements of your original battery
• Ensure the physical dimensions match your current battery compartment

Usage recommendations

To maximize the lifespan of your new battery, avoid deep discharges and keep the device in a cool, dry environment. It is recommended to perform a full charge cycle periodically to maintain accurate battery health reporting by the operating system.