To charge the Energy Meter: · Connect the Energy Meter either to the LEGO ® Power Functions Battery Box supplied with six new batteries or the LEGO Power Functions Rechargeable Battery Box in order to charge the Energy Storage · Turn on the Energy Meter by pressing the green On/Off button, check that the display is on · Let the LEGO Power Functions Battery Box or the LEGO Power Functions Rechargeable Battery Box charge the Energy Meter by leaving them connected for three hours or until the显示关闭。此后,能量表的储能量充满了充电
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