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C1Difficulty 3/5

Two batteries, each with a nominal voltage of 12 V, are correctly connected in series so that their voltages add. What is the combination’s nominal voltage?

Correct answer

A voltage of 24 V.

24 V: the nominal voltages add in this series connection, 12 V + 12 V. The result is neither 12 V nor 18 V. Actual measured voltage may differ from the nominal value with charge state and conditions. This result does not authorise connecting the combination to a 12 V system: follow the vehicle’s design and manufacturer’s instructions.

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  • A voltage of 24 V.

  • A voltage of 12 V.

  • A voltage of 18 V.

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