How do you wire 6 volt batteries to equal 12 volts?

Answer:
Assume that the two batteries are identical; connect the positive of the first battery to the negative of the second battery.
The voltage output from the negative of the first to the positive of the second battery will read 12 volts.
Such a connection of two batteries is called "wired in series".
First answer by Redbeard. Last edit by Redbeard. Contributor trust: 3548 [recommend contributor recommended]. Question popularity: 2 [recommend question].