... " Introductions1)Original laptop batteries are made of Panasonic, Sanyo, Samsung, Sony, LG cells2)Replacement batteries are made of Chinese cells,also ... of time. The laptop will over time discharge the battery. Remove the battery,making sure that it is charged to 50% and ... , such as IBM, DELL, TOSHIBA, COMPAQ, ACER, HP, NEC, ASUS, SONY, FUJITSU-SIEMENS, SAMSUNG, APPLE, LENOVO, LG, MITAC, HASEE and so ...