Science Fair Question

[muscleboy11]

I'm doing a veggie power project, I'm using a potatoe as the power veggie and it's giving out very little power I hooked it up to a watch and it only made the hand go back and forth from one digit to another. I'm trying to figure out how to make a small 1.5 volt buzzer to work. I followed the direction as posted but it's not giving out enough power. How can I get more power from a veggie

[barretttomlinson]

Hi,

I would suggest using greater surface area on the electrodes (using small squares of metal rather than nails) or use multiple veggie bateries in series if your output voltage is not high enough, or in parallel if you can’t get enough current. See the project writeup. These batteries do not put out much power, so you must use very low power devices to get them to work.

Good luck!

Barrett L. Tomlinson