D5540 - Dell 11.1v 4400mAh Li-ion Battery

Here are the technical specs for the Dell D5540 battery:

- Voltage: 11.1 volts
- Capacity: 4400mAh
- Chemistry: Lithium-ion
- Number of Cells: 6
- Color: Black
- Dimensions: 206 x 51 x 20 mm
- Weight: 310 grams

Helpful notes:
- This battery is compatible with several Dell laptop models, including the Latitude E5400, E5410, E5500, and E5510.
- It provides reliable and long-lasting power to keep your laptop running smoothly.
- Lithium-ion batteries have a longer lifespan and higher energy density than other types of batteries, making them a popular choice for electronic devices.