Laptop battery Dell CFD72 15V 3420mAh 54Wh replacement for compatible Dell notebooks

Rechargeable laptop battery Dell CFD72 delivers a nominal voltage of 15V, a capacity of 3420mAh and an energy rating of 54Wh. It is designed as a direct replacement for compatible Dell notebook models to restore battery life and enable mobile use. The battery supports typical on‑the‑go tasks such as working away from mains power, travel and short‑term replacement of a worn original unit while maintaining stable voltage and power delivery required for normal laptop operation.

Advantages

The Dell CFD72 replacement battery provides consistent voltage output and rated capacity to support standard laptop workloads. Its rechargeable chemistry is optimized for balance between runtime and size, offering compact form factor suitable for portable use. The battery is designed to meet the power and safety expectations of compatible Dell notebooks and to be used as a straightforward swap‑in replacement, helping to restore original run times without altering device functionality.

Suitable for

• Replacing a worn or failing battery in compatible Dell laptops
• Extending mobile working time during travel or commuting
• Temporary backup power for meetings, presentations or field work

Key specifications

• Nominal voltage: 15V
• Capacity: 3420mAh
• Energy: 54Wh
• Rechargeable lithium‑ion cell chemistry
• Form factor: slim internal laptop battery suitable for compatible Dell models

How to use

Power down the laptop and disconnect any external power supply before removing the old battery. Follow the notebook manufacturer’s instructions for accessing and replacing the internal battery; typically this involves removing the bottom cover and disconnecting the battery connector. Install the Dell CFD72 replacement battery in the original mounting location and reconnect the connector securely. Reassemble the laptop, reconnect external power and perform a full charge cycle to calibrate the battery gauge if recommended by the notebook manufacturer.

Recommendations

Use the replacement battery with compatible Dell notebook models only. Observe standard safety practices: avoid short circuits, do not expose the battery to extreme heat or water, and dispose of used batteries according to local regulations. For longest service life, store and operate the battery within the temperature range specified by the laptop manufacturer and avoid keeping the battery at full charge or fully depleted for extended periods when not in use.