I have 2 car lights that are supposed to run off a 12v battery, but i'm cheap and really don't want to buy one. I was wondering if it was possible to jimmy rig some 6v batteries together to get that output. I left my electric knowledge back in high school. Thanks for reading!

 

Two 6 volt batteries in series will give you 12 volts.

 

A small 12V lead acid battery is very cheap (about 10$).

If you want to use the 6V batteries you have connect them in series and you will get 12V. To connect them in series connect the positive side of the first to the negative side of the second and take the 12V from the two unconnected terminals.

 

Thanks guys, I actually figured it out when I was waiting, haha. But I really appreciate your guys' help. One more thing tho, I couldn't find a 12v for that cheap... what's the down side of using 2 6v batteries?

 

Thanks guys, I actually figured it out when I was waiting, haha. But I really appreciate your guys' help. One more thing tho, I couldn't find a 12v for that cheap... what's the down side of using 2 6v batteries?

They take more space.
Not a very neat work.
You will need to charge both.
If they are not identical they will discharge at different rates.
You increase the series resistance of the circuit because the internal resistance of the batteries adds (in series).