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The DELL W125821349 6-cell laptop battery provides portable power for compatible Dell notebooks. With a capacity of up to 97 WHr and Lithium‑Ion technology, the battery is intended as a reliable replacement to restore or extend runtime when you need to work away from mains power. The battery is black and designed for straightforward installation in supported Dell models.

Advantages

This Dell 6-cell battery delivers up to 97 WHr of capacity using Lithium‑Ion (Li‑Ion) technology, offering consistent voltage and a compact form factor. It is compatible with a range of Dell laptops, easy to install and replace, and designed to provide stable, long-lasting power for mobile use.

Suitable for

• Replacing a worn or failing Dell laptop battery
• Extending battery life for travel or remote work
• Maintaining uptime during presentations or meetings away from power outlets

Key specifications

• Brand: Dell
• Manufacturer part number (MPN): W125821349
• EAN: 5704174206132
• Battery type: Lithium‑Ion (Li‑Ion)
• Cell count: 6-cell
• Capacity: up to 97 WHr
• Colour: Black
• Category: Batteries for portable devices

How to use

Turn off the laptop and unplug it from the mains. Remove the old battery following the laptop manufacturer's instructions, then align and insert the DELL W125821349 battery into the battery bay until it clicks or locks into place. Power on the laptop and check the system battery indicator to confirm the replacement is recognised. Charge the new battery fully before first extended use to ensure proper calibration.

Recommendations

Store and operate the battery at recommended temperatures, avoid exposure to moisture or extreme heat, and use the laptop's power management settings to optimise battery life. If the device shows unexpected behaviour after installation, consult Dell support or the laptop manual.