dell laptop battery

Almost all lithium-ion battery manufacturers say their energy donors, a lifetime of about 500 to 800 charge / discharge cycles to. Some notebook makers such as Fujitsu Siemens are more conservative and give about 300 cycles of “proper care”, while others conceal the statement completely – and with good intention.

The achievement of the nominal charge cycles depends on many factors. The most important parameters are the discharge current or the electrical load and temperature. Under ideal conditions, ie at 20 degree Celsius ambient temperature and a load of 1 / 5 of the rated current (0.2 C), the Dell Vostro 1420 battery reaches more than 500 charge / discharge cycles to reach the battery capacity limit of 80 percent. Change the load value to 1 C, the Dell Studio 1737 battery is only about half the number of charge cycles.

In addition, the difference from the nominal battery capacity is greater, the higher the Dell Latitude E4300 battery is charged. Ideally, therefore, a lithium-ion battery that is charged in the notebook, mobile phone or PDA, with 20 percent of rated current to achieve the optimum performance in terms of the charge and discharge cycles. For example, a Dell Inspiron 1520 battery with a capacity of 4320 mA / hour (11.1 volt) ideally operated with 864 mA load current. In reality, the notebook this value (0.2 C) is achieved only with extremely preferred power-saving options – if at all. Under maximum operating conditions, such as a high utilization of CPU, graphics, display and hard drive are electrical loads up to rated current specification (1 C). This simultaneously increases the operating temperature of the Dell Vostro 1510 battery dramatically accelerate the aging process and also the performance decline of the lithium-ion cell.