Dell Inspiron 9400 Battery Specifications

Laptops offer the convenience of portability. Laptop batteries and chargers must be designed to meet consumer demands--they need to recharge the battery quickly while keeping the laptop going.

.Electrical Specifications
The Inspiron 9400 battery contains eight lithium-ion (Li-ion) cells that provide 66 watt-hours of electricity at 14.8 volts. It can withstand 400 charging cycles. The 90-watt charger has input voltage ranges of 90 to 135 volts and 164 to 264 volts; it provides a 20-volt output.

Physical Specifications
The Inspiron 9400 battery is 5.5 inches wide, 3.5 inches deep and .8-inch thick. It weighs 13.9 oz. The charger weighs 1.1 lb.

Part Numbers
The Inspiron 9400 battery requires the Dell part number 310-1093 charger (the manufacturer part number is 3K360). The battery part number is 310-0026 (Dell) and 3K120 (generic manufacturer). The charger comes with a 6-foot (three-wire) power cord.

Price
As of October 2010, the Inspiron 9400 battery costs $136 and the charger costs $66. Both the battery and the charger come with a one-year limited warranty when bought through Dell's website.
Considerations
How long a laptop lasts on the battery depends on the computer's power settings and what devices are running. Dell Laptop batteries and adapters sold on Dell's website are tested and validated by Dell for reliability.