Dell CW666 | Battery 4-Cell Li-Ion

Here are the technical specifications of the Dell Battery 4-Cell Li-Ion (CW666):

- Battery Type: Lithium-Ion
- Battery Capacity: 37 Wh
- Number of Cells: 4
- Voltage Provided: 14.8 V
- Compatibility: Dell Latitude D620, D630, D631, D640, D630c, D631N, D630N, Precision M2300
- Weight: 0.5 lbs

Helpful notes:
- This battery is a great replacement option for Dell laptops that have a 4-cell battery.
- It has a decent capacity of 37 Wh, which should provide a few hours of usage on a single charge.
- Make sure to check the compatibility list before purchasing to ensure that it will work with your laptop model.