Portable computer powered by rechargeable batteries
作者： K ouichirou Takeguchi , Atsuhiro Ootake , Mayumi Oka , Yuji Yamanaka , James Mason
DOI:
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摘要: When a computer is not externally powered, it operates from installed first and second batteries. In top surface of the computer, LEDs are provided which indicates three states each battery; need charging, during completion charging.
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