The Dell Inspiron 6400 is a laptop that meets you in the middle. It’s pretty light and portable (like the Inspiron e1405) and offers high performance and great media options (like the Inspiron e1705). Basically, you get the best of both worlds, at a reasonable price.
Battery life on the 6400 is very respectable. Under normal tasks (WiFi on, 75% brightness, Windows Media Visualizations), the battery lasted about 3 hours and 15 minutes. With WiFi off, and playing games with low brightness.
Repairing Dell inspiron 6400 Battery Packs Simple Guidelines
- Only connect cells that are matched and have the identical state-of-charge. Do not connect battery cells of different chemistry, age or capacity.
- Never charge or discharge Li-ion Inspiron 640m Battery without a working protection circuit unattended. Each cell must be monitored individually.
- Include a temperature sensor that disrupts the current on high heat.
- Apply a slow charge only if the cells have different state-of-charge.
- Pay special attention when using an unknown brand of cells. Some may not contain a high level of intrinsic safety features.
- Li-ion is sensitive to reverse polarization. Observe correct polarity.
- Do not charge a Li-ion inspiron 6400 battery that exhibits physical damage or has dwelled at a voltage of less than 1.5V/cell.
- When repairing Li-ion, assure that each cell is connected to a protection circuit.
