MadSci Network: Engineering

Re: Can a 3 volt battery be used to power a potato clock? Voltage too high?

Date: Thu Jan 21 11:56:08 2016
Posted By: Fred M. Niell, III, Senior Electrical Engineer
Area of science: Engineering
ID: 1453353845.Eg

Hi - I would suggest not using LED clocks, but rather LCD clocks.  These 
require far less power than an LED clock, and you will have better 
success.  Additionally, if one potato is not enough voltage to run a 3V 
clock, then just put more potatoes in series until the voltage is high 
enough to run the clock.  Any particular reason why you want to use 
potatoes instead of lemons, for example?  

Good luck

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