The circuit was designed without the use of a power supply or a moving coil voltmeter to create a quick battery tester which can test 1.5 V to 15 V battery cells with a two-LED display.
The circuit was designed to create a spare and reserve power source with the use of batteries during the absence of power from the mains.
The circuit has been designed to produce a battery charger for automobiles that are using 12V batteries only.
The circuit has been designed to construct a practical mechanism that can easily and automatically charge batteries rated at 6 V or 12 V used in automobiles.
The circuit was designed to produce an indication before a 12V lead acid battery would reach the discharged state.
The circuit diagram shows a regular charger being powered by an AC input source, intended for charging batteries.
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