Food Batteries

Thread Starter


Joined Jan 4, 2007
I would of done a search for this topic if you had a search feature on this forum. I hate to ask a elementary question.

I'm doing a project with different fruits and vegetables to see if I can light up a small flashlight bulb. So far, using six oranges, potatos, apples and lemons i can't do it. I can light up a small calculator, but not the bulb.

Do I just need to increase the foods in a series to get the desired results, or is their an ampage problem? I know I have the volts, but ........?


Joined Dec 25, 2006
What kind of bulb? Not sure if you will squeak out enough current. Semiconductors are easy since many are now low power. TI's MSP430 can be powered by grapes.:cool: