Dual batteries

[Frederick Alt]

Can I wire two 36v batteries together and get 72 v ? and will the amp hours double as well?

 

[AguassissiM]

If you double the voltage amps will stay same, if you double the amps voltage will stay same. You got to pick one.

 

[Ann M.]

Also, @Frederick Alt, make sure you're using a controller that can handle 72 volts or you'll fry what you're currently running. Can you give us a little more detail about the rest of your setup? Motor size, type, brand, etc. We can help you more then.