Looking for the longest battery life laptop ?

We’ve yet to see a Windows laptop with battery life longer than 5~7 hours, unless we add an extended battery to the system. But when hpand dell launched its new series of laptops last week, one big push wasfor longer battery life.

When you purchase your notebook, charge the battery to 100 percent,discharge it completely, and then fully charge it to 100 percent againto help the battery remember exactly how much electrical charge it canhold. From then on, you’ll never need to completely discharge the laptop battery again, but always make sure when charging it that you let it reach 100 percent. DeHoop told us to “remember to plug in the laptop AC adapter(or dock/port replicator) whenever you get a chance. Most notebookswill recharge quickly.” Salinas had another tip for your batteries:“Keep them cool. Exposure to high temperatures can be a battery’s worstenemy,” he said

Hope the list can give you some help when you purchase a laptop or battery:

Top 5 long battery life for laptop

HP/Compaq Business NoteBook 6715B Battery 6 cells 4400mAh Description:
Type: Li-ion, 6 cells
Voltage: 10.8V
Capacity: 4400mAh
UL certificated cells inside!

Original HP Pavilion dv8000 Battery 8 cells 4400mAh Description:

Voltage: 14.4V
Capacity: 4400mAh
Type: Li-ion, 8 cells
Color: Dark Grey
Dimension:205.40 x 69.80 x 20.90 mm
Status: New and original.
Packing: Plain Box

Dell Inspiron 6000 Battery 9 cells 6600MAH Description:
Type: Li-ion, 9 cells
Voltage: 11.1V
Capacity: 6600mAh
Color: Black

HP/Compaq Pavilion DV6000 Battery 12-cells 8800MAH Description:

Cell Type: Li-ion, 12-cells
Voltage: 10.8V
Capacity: 8800MAH
UL certificated cells inside!

Dell Inspiron 6400 Battery 9 cells 6600MAH Description:

Type: Li-ion, 9 cells
Voltage: 11.1V
Capacity: 6600mAh
Color: Black