To obtain a total voltage of 24 V by connecting two 12 V batteries, how must their terminals be joined?

Question

DentroTest · Accepted Answer

To add up the voltage of two electric accumulators or batteries, they must be connected in series. A series connection is made by joining the positive (+) terminal of one battery to the negative (-) terminal of the other; the remaining free terminals provide the combined voltage of 24 V (12 V 12 V). By contrast, joining positive to positive and negative to negative would be a parallel connection, which would keep the voltage constant at 12 V while doubling the available current capacity (ampere-hours).

To obtain a total voltage of 24 V by connecting two 12 V batteries, how must their terminals be joined?

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