If a bus's electrical system operates at a voltage of 24 volts by means of two 12-volt batteries, how must they be connected to each other?

Question

DentroTest · Accepted Answer

To reach a total voltage of 24 volts from two 12-volt batteries, it is essential to connect them in series (connecting the positive terminal of one battery to the negative terminal of the other). In a series connection, the individual voltages add up (12 V 12 V = 24 V), while the rated capacity (Ah) of one of them is kept. By contrast, if they were connected in parallel (positive to positive and negative to negative), the resulting voltage would remain 12 volts, which would prevent the starter motor and the bus's electrical components from working properly.

If a bus's electrical system operates at a voltage of 24 volts by means of two 12-volt batteries, how must they be connected to each other?

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