Introduction: Macgyver-Cardboard & Duct Tape Solar Charger

Sometimes you need electricity to charge your batteries, but if you're limited to cardboard, duct tape and a bit of electrical components, don't wory this simple solar charger wil help you.
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You will need:
-Cardboard
-Duct tape
-Solar cell (3v)
-Diod's
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Tool's:
-scissors
-scalpel
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Step 1: Making a Box

Cut out a cardboard box so It can fit solar panel (6x6 and 3 centimeters deep)
You will get a box with displacement of about 108 cubic centimeters.

Step 2: Making a Circuit

Make a simple Graco's compound whit 4 diod's  http://img859.imageshack.us/img859/9834/napajanjesamo1.gif

Step 3: Final

This is It now you can charge your batterys ( 1,5 volts)
Stay safe and think smart.

Comments

author
dasimpson1981 made it!(author)2013-02-24

why on earth are you running a bridge rectifire on dc voltage you only need one when changing ac to dc voltage
here you only need one diode on the + side of the solar panel so the power goes from the panel to the battery in daylight so when the panel is in dark the battery can not dump power into the panel and discharge

author
dasimpson1981 made it!(author)2013-02-24

with a bridge rectifire your wasting over 1.4 volts

author
dasimpson1981 made it!(author)2013-02-24

ethern if the panel is 3 volt you can still safly charge a 1.2 volt battery it will just start charging in lower light conditions

author
Dr.Bill made it!(author)2013-03-03

How would an LED do?

author
dasimpson1981 made it!(author)2013-03-03

for what ?

author
Dr.Bill made it!(author)2013-03-04

For ah blocking diode on such ah small charging system...

author
dasimpson1981 made it!(author)2013-03-04

no because the forwed voltage drop is higher on the led ideal you wont a Schottky diode the forwed voltage drop is a lot lower then a normal diode

author
GhoustDoggy made it!(author)2013-02-24

Ok, I know I accidentally put that their :D I m Noob

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