Make: Online : Lemon-powered LEDs

Lemon-powered LEDs

A lemon battery powers an LED. From the Make: Flickr Pool.

Lemon Battery

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Posted by: AP on October 2, 2008 at 3:50 PM

Please stop calling these things fruit-powered.

The fruit is just a sack of acidic fluid that activates a copper-zinc battery. It'd be like calling a lamp kinetic-powered because you have to flip the light switch.

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Posted by: justDIY on October 3, 2008 at 6:25 PM

cute and all, but very wasteful

lemons must be dirt cheap elsewhere - here, fresh lemons are $1.59 each (not a pound!)

use paper cups and some white vinegar; save the lemons for tea and cocktails.

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