M5Y0X - Dell 9-Cell Li-Ion 11.1V 97Wh 8500mAh Battery for Latitude E6420 E6520

Here are the technical specs for the Dell M5Y0X battery:

- Battery Type: Li-Ion
- Voltage: 11.1V
- Capacity: 97Wh
- Number of Cells: 9
- Wattage: 8500mAh
- Dimensions: 8.19 x 2.13 x 0.79 inches
- Weight: 1.2 pounds

Helpful notes:
- This battery is compatible with Dell Latitude E6420 and E6520 laptops.
- The 9-cell design provides longer battery life than the standard 6-cell battery.
- It is recommended to fully charge and discharge the battery at least once a month to maintain optimal performance.