Internal lithium-ion battery Lenovo 02DL007 50Wh

This internal lithium-ion battery by Lenovo offers 50Wh capacity and is intended as a replacement battery for compatible Lenovo laptops. It is designed to match the form factor and charging behavior of original internal batteries used in certain Lenovo models. The battery supports standard charging circuits and provides energy to restore portable runtime and device mobility when the original cell has degraded.

Advantages

The 50Wh lithium-ion cell delivers a balance of capacity and compact size suitable for internal laptop installation. As an OEM-compatible replacement, it fits into the device’s original battery compartment and works with existing charging and power-management systems. The battery is engineered for stable voltage delivery and predictable discharge characteristics under typical laptop workloads.

Suitable for

• Replacing a worn or failing internal battery in compatible Lenovo laptops
• Restoring mobile runtime for business or travel use
• Maintenance and refurbishment of laptops used in offices or fleets

Key specifications

• Battery chemistry: lithium-ion
• Rated energy: 50 Wh
• Design: internal (built-in) laptop battery form factor
• Compatibility: designed for laptops that accept this internal battery size and connector type
• Operating environment: typical laptop ambient temperature range for battery operation

How to use

Power off the laptop and disconnect any external power source before beginning replacement. Remove the device’s service panel or follow the manufacturer’s instructions to access the internal battery compartment. Carefully disconnect the battery cable or connector, remove the old battery and install the replacement unit in the same orientation. Reconnect the battery cable, reassemble the device and reconnect external power. After the first charge, allow the battery to complete a full charge cycle to let the system recalibrate battery level reporting.

Recommendations

Use only in laptops specified to accept this internal battery form factor and follow Lenovo service instructions. Avoid exposing the battery to extreme temperatures, puncture, or prolonged storage at full charge. For safety and optimal lifespan, charge and discharge the battery regularly during normal use and dispose of the old battery according to local electronic waste regulations.