Battery Origin Storage DELL 3 CELL 51Wh 4100mAh 11.4V

The Origin Storage DELL 3 CELL 51Wh 4100mAh 11.4V battery is a replacement Lithium‑Ion battery compatible with Dell laptops. It provides 51 Wh capacity (4100 mAh) at 11.4 V and is finished in black. The battery is intended to restore portable power to compatible Dell notebook models and to deliver stable runtime for typical mobile computing tasks.

Advantages

This 3‑cell Dell battery offers a balance of capacity and weight, using Lithium‑Ion chemistry for consistent discharge and recharge cycles. With a rated 51 Wh and 4100 mAh, it supports everyday laptop use while maintaining compatibility with Dell power management systems. The black housing is designed to match laptop aesthetics and fit standard Dell battery bays.

Suitable for (tasks / use cases)

• Replacing a worn or failing battery in compatible Dell laptops
• Extending mobile runtime for office work, web browsing and media playback
• Using as a spare battery for travel or remote work

Key specifications

• Brand: Dell
• Model / MPN: 266J9
• Type: Lithium‑Ion (Li‑Ion)
• Cells: 3 cell
• Capacity: 4100 mAh (51 Wh)
• Voltage: 11.4 V
• EAN: 5715063300619
• Color: Black

How to use

Power down the laptop and disconnect any external power source before replacing the battery. Remove the existing battery following the laptop manufacturer’s instructions, insert the Origin Storage DELL 3 CELL battery into the battery bay until it locks, then reconnect power and boot the device. Allow the battery to complete a full charge cycle for accurate battery level reporting.

Recommendations

Use with compatible Dell models only; avoid exposing the battery to extreme heat or moisture. Store the battery at moderate charge (around 40–60%) if not used for extended periods, and follow manufacturer guidance for recycling or disposal of Lithium‑Ion batteries.