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A Battery indicator is a device which gives information about a battery. This will usually be a visual indication of the battery's state of charge. It is particularly important in the case of a battery electric vehicle. ==Automobiles== Some automobiles are fitted with a battery condition meter to monitor the starter battery. This meter is, essentially, a voltmeter but it may also be marked with coloured zones for easy visualization. Many newer cars no longer offer voltmeters or ammeters; instead, these vehicles typically have a light with the outline of an automotive battery on it. This can be somewhat misleading as it may be confused for an indicator of a bad battery when in reality it indicates a problem with the vehicle's charging system. Alternatively, an ammeter may be fitted. This indicates whether the battery is being charged or discharged. In the picture on the right, the ammeter is marked "Alternator" and the symbols are "C" (charge) and "D" (discharge). Click on the picture to enlarge it. Both ammeters and voltmeters individually or together can be used to assess the operating state of an automobile battery and charging system. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Battery indicator」の詳細全文を読む スポンサード リンク
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