Dell 312-0557 | 9-Cell 85 WH Lithium-ion Primary Battery

Here are the technical specs for the Dell 9-cell 85 WHr Lithium-Ion Primary Battery:

- Battery type: Lithium-ion
- Battery capacity: 85 WHr
- Number of cells: 9
- Voltage: 11.1 V
- Compatibility: Dell Latitude E5420, E5520, E6420, E6520, E6430, E6530, E6440, E6540, E6440 ATG laptops

Helpful notes:
1. This battery has a higher capacity than the standard battery, providing longer battery life for your Dell laptop.
2. The 9-cell design provides more power and longer run time than the 6-cell battery option.
3. This battery is a genuine Dell product, ensuring compatibility and reliability with your Dell laptop.