... for HP seriesNo Trust, No Business 1. Product range:For HP, For Dell, For Toshiba, For Lenovo, For IBM, For Fujitsu, For Acer, For Asus, For Samsung,For Apple,For ... avoid frequent full discharging of the battery. 2.For battery meter calibration, periodically do a full battery ... your battery undergo self-discharging when left unused for a long time. So it is necessary ... machine when it is not being used.