Dell 43Wh 3-Cell Internal Laptop Battery (W125713828)

This Dell 43Wh 3-cell battery stands out for its seamless integration and reliable power delivery, tailored specifically for select Latitude and Vostro models. Unlike generic replacements, it matches the original battery's form factor and connector, ensuring a perfect fit and stable operation without compatibility guesswork.

Highlights

• Genuine Dell design with proprietary connector for secure, drop-in installation.
• 43Wh capacity and 11.25V nominal voltage balance runtime and weight.
• Built-in protection against overcharge, over-discharge, and short circuits.
• Rechargeable lithium-ion chemistry for hundreds of charge cycles.
• Compact internal mounting keeps the laptop's slim profile intact.

In daily use

Whether you're working through back-to-back meetings or catching up on tasks away from an outlet, this battery delivers dependable power for hours of productivity. Its 3-cell configuration keeps weight low, making it easy to carry your laptop throughout the day. The black finish blends invisibly inside the chassis, and the proprietary connector ensures a snug, rattle-free connection. Since it's designed for internal use, you can swap it in minutes with basic tools and get back to work without downtime.

Full specifications

• Brand: Dell
• Model: W125713828
• MPN: W125713828
• EAN: 5704174229063
• Battery type: Lithium-Ion (Li-ion)
• Energy capacity: 43 Wh
• Number of cells: 3
• Nominal voltage: 11.25 V
• Current capacity: 3822 mAh
• Product type: Internal Laptop Battery
• Compatibility: Dell Latitude 3420, 3520; Dell Vostro 3401, 3501, 3510, 3511, 3515, 3520, 3521, 3525 series
• Rechargeable: Yes
• Colour: Black
• Overcharge protection: Yes
• Over-discharge protection: Yes
• Short circuit protection: Yes
• Mounting type: Internal
• Connector type: Proprietary Dell

Final note

For professionals who depend on their Dell laptop, this battery is a straightforward way to restore original runtime and reliability. It's a practical investment that keeps your device performing at its best, without the risk of third-party incompatibilities.