Dell PM154 | 56Whr 6-Cell 11.1V Li-Ion Battery for Inspiron 1520, 1521, 1720, 1721, Vostro 1500, 1700

Here are the technical specifications for the Dell 56Whr 6-Cell 11.1V Li-Ion Battery for Inspiron 1520, 1521, 1720, 1721, Vostro 1500, and 1700:

- Battery type: Li-Ion
- Battery capacity: 56Whr
- Number of cells: 6
- Voltage: 11.1V
- Compatibility: Inspiron 1520, 1521, 1720, 1721, Vostro 1500, 1700

Helpful notes:
- This battery is a replacement for the original battery that came with your laptop.
- It provides longer battery life and is more reliable than other aftermarket batteries.
- It is recommended to fully charge and discharge the battery at least once a month to maintain its health.