Dell NR147 | Battery 4-Cell Li-Ion

Here are the technical specs for the Dell Battery 4-Cell Li-Ion (NR147):

- Battery type: Lithium-ion
- Number of cells: 4
- Capacity: 40Wh
- Voltage: 14.8V
- Dimensions: 8.1 x 2.2 x 0.8 inches
- Weight: 10.6 ounces

Helpful notes:
1. This battery is compatible with a variety of Dell laptops, so be sure to check your laptop's compatibility before purchasing.
2. Lithium-ion batteries have a longer lifespan than other battery types and are less prone to memory effect.
3. The 4-cell capacity is ideal for those who need a battery with a longer lifespan than a 3-cell battery, but don't want the added weight of a larger battery.