There is only one kind of charge, lithium-based laptop battery. Can extend the so-called ‘miracle-loading devices’, which, as is said to produce batteries and their life expectancy, does not exist for the lithium chemistry. No one can administer one Superschnellladung. The manufacturers of lithium-ion cells have very strict guidelines for the loading procedure and the batteries need to be treated with the appropriate regulations.
Lithium-ion are easy to maintain and use any preparations, as in the nickel-based Dell latitude D600 battery, the case is. The first charge is the same as the fifth and the fiftieth. The instructions require a new battery for 8 more hours to take off and land, may lead to nickel-based batteries back.
Most cells are charged to 4.20 volts, with a tolerance of + / -0.05 V / cell. A charge of only 4.10 Volt reduced the capacity by 10%, but results in a greater life expectancy. Newer Dell Latitude D510 Battery cells are now in a position to achieve, even with a charge to 4.20 volts per cell for a good number of charge cycles. In Figure 1 are voltage and current waveform shown a lithium-ion cell during a charging process.
Figure 1: Charging a lithium-ion battery .. Increasing the charge current in a charger for lithium-ion Dell Latitude D520 Battery, can not significantly shorten the charging time. Although the peak voltage is fast enough with a higher current, the full charge takes more time.
The charging time of most chargers is about 3 hours. Smaller Dell Latitude D610 Battery, as used for mobile phones, can be charged with 1C, the larger cells 18650 I need for laptop computers, should be consistent with 0.8c or less loaded. The efficiency of the charge is 99.9% and the battery remains cool during charging. The full charge is reached when the voltage threshold is reached and the current has fallen to 3% of set value, or approximate.
A maximize the charge current reduces the loading time but barely. Although the peak voltage is reached faster with a higher charge current, reaching the full charge lasts longer.
