DELL 0ONFOH Laptop Spare Part Battery

The DELL 0ONFOH 3-cell laptop battery provides portable power for compatible Dell notebooks. With a rated capacity of up to 42 WHr and a black housing, this spare battery is intended to restore or extend the usable runtime of your laptop when you are away from mains power.

Advantages

This Dell replacement battery delivers a direct-fit solution for supported models, offering reliable power delivery and consistent performance. Its compact 3-cell design keeps weight and size low while providing up to 42 WHr of capacity. The unit is finished in black to match standard laptop aesthetics.

Suitable for

• Replacing a worn or failing Dell laptop battery
• Extending runtime for mobile work and travel
• Keeping a backup battery for field technicians or remote use

Key specifications

• Brand: Dell
• Manufacturer part number (MPN): 0ONFOH
• EAN: 5715063014158
• Cell count: 3-cell
• Capacity: up to 42 WHr
• Product colour: Black

How to use

Power off the laptop and disconnect it from mains before replacing the battery. Remove the existing battery according to your laptop's service manual and install the DELL 0ONFOH battery in the same orientation until it clicks or locks into place. Reconnect the mains adapter and charge the new battery fully before first use to ensure accurate charge reporting.

Recommendations

Store and operate the battery at moderate temperatures, avoid exposure to extreme heat or moisture, and use only manufacturer-recommended chargers and adapters. If the battery shows signs of damage or swelling, discontinue use and replace it with an authorized spare.