The Tiny Lemon Battery, and other designs for zero cost battery and led light

introThe Tiny Lemon Battery, and other designs for zero cost battery and led lightHi, you probably already know about lemon batteries or bio-batteries.

These usually use 3-4 lemons to barely light up a led. Good designed ones use just 1 lemon.

I'd like to show you mines.

They use 4 DROPS of lemon juice.

The lightest weights 0.76g.

They light up a 3.5V, 35mA white Led for at least 1 hour.

After 1 hours (more or less depending on climate) the lemon juice evaporates.
It is like a natural timer. If you want more light, just put another 4 drops of lemon juice.
You can re-use it for many, many times before oxidizing makes it unusable.

Well, let's see how to do (in less than 10 minutes) the Tiny Lemon battery Design 1 and 4, with materials you have around house and zero cost.

After that I'll introduce you to the flower lemon battery design, in which you light up the led by watering the flower (with drops of lemon juice).

Finally, we will see other 10 different designs for making a battery out of ordinary materials.

Go there..

http://static01.instructables.com/id/The_micro_Lemon_Battery_reusable_1_hour_of_led_l/

Don