subject: Batteries in Laptop Computers [print this page] Batteries in Laptop Computers Batteries in Laptop Computers
Nickel-cadmium (Ni-Cd) batteries are the oldest technology, rarely used today. Nickel-cadmium battery new battery heavier than the existing. Most notebook computer manufacturers have stopped production of this type of battery. Nickel-metal hydride battery (Ni-MH) is not likely prone to memory effect (such as the battery will gradually lose their maximum capacity), and have a better power to weight ratio than the nickel-cadmium batteries. These batteries are also eliminated a number of manufacturers.
Laptop battery rated voltage from (V) and mA-hour (mAh). Voltage is the energy absorption rate from the battery. MA that the battery capacity. Milliamp-hour rating and running time of the battery. Milliamp-hour battery with a high a level lower than a milliamp-hour battery is rated to run a relatively long time.
Laptop batteries run time will depend on individual laptop computers. It is used (ie high graphics, games) and different applications, the number of things to save or retrieve from the hard drive and / or CD ROM drives, notebook memory, chemical and battery capacity. The average running time of the reality of a battery 1.5 to 3 hours. Using a similar wireless adapter on the laptop also drains the battery much equipment. A normal battery life is about 500 to 900 charge and discharge cycles. This is about a year and a half to three years of regular users battery life. The rechargeable battery begins to fail, the battery run time begin to decline.
Lithium Ion batteries have a slightly higher voltage range and generate more heat. My suggestion is to purchase NiMH rechargeables - they are safer in a camera designed for regular AA batteries. You can purchase 4 AA NiMH 2500MAh Energizer batteries and a wall charger for $17-18 at Wal-Mart.
The run time of laptop batteries will vary on individual laptop computers. It depends on the applications being used (i.e. high graphics, games), the number of times something is saved or retrieved from the hard drive and/or CD Rom drive, the memory of notebook, and chemistry and capacity of the battery. A realistic average run-time for a battery is 1.5 to 3 hours. Using devices like a wireless adapter on the laptop also drains the battery considerably. The life of a battery under normal use is around 500 to 900 charge-discharge cycles.
