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www.livescience.com/62570-potato-battery-conduct-electricity.html

A potato battery can produce only about 1.2 volts of energy. Takhistov said you would need to link many potato batteries in parallel to create enough of a current to charge a device like a phone ...

www.instructables.com/Potato-Battery-Driven-LED

Potato Battery Driven LED: So, if you looked at my profile you would see that I like physics. When the challenge for “Potatoes” I just knew that I need to do a project that highlighted the lowly “Potato Battery”. So here is how to make a Potato Battery and have it light a…

www.bbc.com/future/article/20131112-potato-power-to-light-the-world

Their cost analyses suggested that a single boiled potato battery with zinc and copper electrodes generates portable energy at an estimated $9 per kilowatt hour, which is 50-fold cheaper than a ...

www.healthy-holistic-living.com/one-potato-battery-could-light-up-an-entire...

With the average global price of over 2lbs of potatoes holding at $0.51, the current energy needs of poor towns and villages could easily be met. (4) Obstacles To Overcome. The University offered to give the invention away, free of charge. Despite this, the potato battery has yet to sweep the globe or make the headlines. The lack of enthusiasm ...

inhabitat.com/researchers-develop-potato-powered-batteries

By boiling a potato prior to use, the researchers discovered that they could generate 10 times the power of an untreated potato, enabling the battery to work for weeks at a time.

science.howstuffworks.com/innovation/science-questions/onion-power-ipod1.htm

Some batteries use galvanic cells to transfer chemical energy into electric energy. They depend on two metals, a cathode or positive terminal (such as copper) and an anode or negative terminal (such as zinc).These are placed in an electrically conductive solution that allows ions to travel freely between the two metals. The solution is typically an acid.

ask.metafilter.com/154241

I don't know how much current a potato battery usually provides, but if you are using an old-fashioned VOM (analog unpowered multimeter) it may be loading the potato too much to register. If you are using a VOM, try a VTVM or FETVOM (analog meters with internal amplifying devices made to reduce load on the measured circuit) or a good quality ...

answers.yahoo.com/question/index?qid=20110224170822AAQnAhD

The current from a potato battery is too small to even light a flashlight bulb. Connecting two or more potato batteries in PARALLEL will increase the available current to the point where it might light an LED - probably dimly. The voltage can be increased by connecting t or more batteries in SERIES - see below.

electronics.stackexchange.com/questions/361670/potato-battery-not-powering-clock

The potato battery I rigged up puts out 1.60-1.80 volts so says my multimeter, but when I alligator clip it to the clock, nothing. I pulled a double a battery from a controller, and it works, but not the potato batterie (also tested the battery with the multimeter to see if the multimeter is broken, it came up right around 1.5 as well).

priuschat.com/threads/technical-questions-on-a-potato-battery.118814

Last night I created a potato battery with a 16D galvanized nail and a tiny piece of very high gauge copper wire. The voltage was .9V and apparently that voltage is dictated by the anode and cathode used. I shorted the battery and its current was so low it couldn't even warm the wire ...