Hey Grandad, can you make a potato powered car? (no I can't)

3,207 views · Published 22 February 2014 · 9:43 · Indexed 24 October 2026

Channel: GrandadIsAnOldMan · 2014 · Science & Technology

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One of my regular subscribers, urantiruslan, left a comment "can you make a crawler bot  or car that runs on lemons or potato  ? like to see you make that i saw at mike make a clock power with potato like to see a potato or lemon power a mobile vehicle".  My honest answer was "I don't think I could get enough power to run a car or a crawlerbot from lemons or potatoes." but I thought I would give it a go. 
I didn't have any lemons so I just used potatoes and as I expected I could not get enough power to drive an electric motor, but I did convert one of those 'solar movers' to run from the potatoes and I also managed to light an LED.
It seems to me that to get enough power to drive an electric motor from potato batteries you would need several pounds of them linked together and then the battery would be too heavy for the motor to move. If anybody has managed I would be interested to see it.

Components
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Potatoes
Copper wire
Zinc coated nails

Here are two of my early videos making these sort of batteries with my granddaughter early last year.
Lemon Battery https://www.youtube.com/watch?v=LiIJMGQHYgQ&list=PLA5a2xPRSrB2HXSqJPl6Kv9J_pHHp4cIF&feature=share&index=5
Vinegar Battery https://www.youtube.com/watch?v=4cbIyHpRFys&list=PLA5a2xPRSrB2HXSqJPl6Kv9J_pHHp4cIF&feature=share&index=2

Here is another potato related video :-)
https://youtu.be/7IWrLqdT6vQ

Simple projects https://www.youtube.com/playlist?list=PLA5a2xPRSrB2HXSqJPl6Kv9J_pHHp4cIF
Simple electronic projects https://www.youtube.com/playlist?list=PLA5a2xPRSrB0qd7Hrqoc3II0OU-bx64TA
Electronic projects https://www.youtube.com/playlist?list=PLA5a2xPRSrB00lxaX8BD46F1QDJTe7Em4

Lemon, Potato, Vinegar etc Power https://www.youtube.com/playlist?list=PLA5a2xPRSrB24tJDQHdmjgpFGwfvwvnnn
Solar snowman https://www.youtube.com/playlist?list=PLA5a2xPRSrB2IsZs-7feda7BZFdPpxHdN

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