♔♔♔ This circuit diagram shows detail schematic design of Automotive|Car Voltage Indicator. Simply connects this circuit to the battery of your vehicle, you will always know at a glance the approximate voltage available. This circuit diagram consists of following parts: Resistors, LED, Diode, Zener Diode, and Transistors. An indication of battery voltage is useful to the motorist for monitoring the battery’s capacity to deliver current, and as a check on the efficiency of the dynamo or alternator.
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