To achieve 24 VDC from two 12 V batteries, which wiring method is used?

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Multiple Choice

To achieve 24 VDC from two 12 V batteries, which wiring method is used?

Explanation:
To get 24 V from two 12 V batteries, you connect them in series. When batteries are linked in series, you join the positive of one to the negative of the other. The overall output is taken from the remaining free terminals, and the voltages add together, giving about 24 V. The capacity (amp-hours) stays the same as a single battery, not doubled. If you wired them in parallel, you would still have 12 V, just more capacity. Placing a diode in series would drop some voltage, so you wouldn’t reliably end up with a solid 24 V under load. Not connected wouldn’t supply any voltage at all.

To get 24 V from two 12 V batteries, you connect them in series. When batteries are linked in series, you join the positive of one to the negative of the other. The overall output is taken from the remaining free terminals, and the voltages add together, giving about 24 V. The capacity (amp-hours) stays the same as a single battery, not doubled. If you wired them in parallel, you would still have 12 V, just more capacity. Placing a diode in series would drop some voltage, so you wouldn’t reliably end up with a solid 24 V under load. Not connected wouldn’t supply any voltage at all.

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