| http://www.w3.org/ns/prov#value | - roller for causing said PC including said charger, to drive, an external power supply means for driving said PC, and a battery holding apparatus connected to said charger for holding a secondary cell, said secondary cell charging method comprising: a battery list generation step of analyzing at least a part of a name of battery manufacturer, a kind of a battery, a battery type, model, ratings, cap
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