Introduction: Cycle Battery Charger

Picture of Cycle Battery Charger

Maybe your going cycling in the hills, maybe there is a zombie apocalypse, where fuel and energy are the most important stuff, you turn to using your cycle. Cycle, one of the greatest inventions of man, shows us how something so simple can achieve wonder! Batteries on the other hand, are wonderful and convenient device! They store energy which we can use anytime we want. What could possibly go wrong when combine batteries and a cycle? Nothing! And in this Instructable I will e showing you all how to make a Solar-Dynamo-Battery charger!

Step 1: Getting the Required Material

Picture of Getting the Required Material

We need :

1) A single battery holder (size of your choice)

2) Some wire

3) A blocking diode

4) Some toothpicks

5) Foam paper

6) Some tape & a pair of scissors

7) A smooth, easy to turn Dynamo and a simple solar panel

Use a multimeter to check if everything works and keep a solder by your side.

Step 2: Setting Up the Dynamo

Picture of Setting Up the Dynamo

Simple task with tape, I have uploaded a photo with all the steps, one by one. For those of you who are still not clear about it, here are some good old textual information:

1) Take two pairs of toothpicks and place them the same way as shown in the picture.

2) Tape up their ends tightly.

3) Take any sharp object (I used a pincer from my bio lab kit) and insert it inside the gap in between the two toothpicks.

4) Tape the two pairs of toothpicks together perpendicularly as shown.

5) Again, insert the picer and make a hole through the tape, I any tape covered the center of the " + " formed by the toothpicks.

6) now, insert the " + " in your dynamo.

7) Take a foam sheet, cut out 4 similar pieces of foam.

8) Tape them at the end of the toothpicks in an orderly manner, with all of them facing each others back, either clockwise or anti clockwise.

Step 3: Soldering Everything Together

Picture of Soldering Everything Together

Follow the simple schematic I drew. If you still have any confusion, check the photos that I uploaded too.

1.

Solar panel + _____> Dynamo +

Solar panel - _____> Dynamo -

2.

Dynamo - ______> Battery holder -

3.

Solar panel + _____> Blocking diode

Blocking diode _____> Battery holder +

That's it! Now you are done with Cycle battery charger! All that's left is the cycle......

Step 4: Attaching the Device to Your Cycle

Picture of Attaching the Device to Your Cycle

Take some tape, and tape the end of the dynamo , solar panel and battery holder in your cycle, anywhere you fell comfortable. I found the front of my cycle to be the best place to attach it as the charger is exposed to a lot of light and wind.

It works like a char and battery got charged after a few hours of cycling in windy and sunny terrain just outside city! Now you can use that battery for anything, be it powering your cycle headlights or using it as a zapper against zombies, its your call!

Thanks a lot for reading the Instructable, and if you liked it, please comment!

Comments

DrAmpuT (author)2015-04-12

A simple design that was simple and inexpensive enough to interpret as a practical implementation. I will build a test version using a few spare parts. Looks as if it will provide energy with not further effort from me.

Thank you so very much for your idea.

GuhanN (author)DrAmpuT2015-10-31

Thanks! Hope it helped!


Sorry for the vvv late reply :-)

lokeshwaranpalanisamy (author)2015-04-06

An just a geek. So please don't find my doubt silly. Is there any name for blocking diode. It's so what's it?. Where is the next circuit to make the current I the cell so that it can charge the phone.

Hi Lokesh! I will try to answer all your questions in this one reply itself!

The name of the diode used is IN4001. You can even use a IN4007 diode. What the blocking diode does is, it lets power flow in only one direction. So the blocking diode will only allow the flow of current from the Solar panel and Dynamo to the battery and not vice versa.

Remember, when choosing a solar panel, ensure that its output is around 15% of that of the batteries. This ensures that even after the battery gets fully charged, i will not get overloaded. Plus, since the solar panel's output is lesser than that of the batteries, it simply can't do anything to the battery, so don't worry :)

And I am sorry I cannot understand what you meant by "Where is the next circuit to make the current I the cell so that it can charge the phone.".

I hope that all my answers were satisfying and your questions have all been answered!

wobbler (author)GuhanN2015-04-07

"Where is the next circuit to make the current I the cell so that it can charge the phone." I think lokeshwarapalanisamy is asking how you could use this to connect to or charge a phone.

GuhanN (author)wobbler2015-04-08

Thanks a lot wobbler! Unfortunately, Lokesh, I do not know how to add a cell phone charger to this device! That's why I made it a battery charger, and you can use that battery for a multitude of things.

Well, if you knew how to make one, do post an Instructable on it!

lokeshwaranpalanisamy (author)2015-04-06

Suppose the battery is full, and not used. But power is supplied to battery continuously. What will happen to the circuit

lokeshwaranpalanisamy (author)2015-04-06

Suppose the battery is full, and not used. But power is supplied to battery continuously. What will happen to the circuit

lokeshwaranpalanisamy (author)2015-04-06

Suppose the battery is full, and not used. But power is applied to battery continuously. What will happen to the circuit

lokeshwaranpalanisamy (author)2015-04-06

Am just a geek. So please don't find my doubt silly. Is there any name for blocking diode. If so what's it?. Where is the next circuit to make the current the cell to charge the phone.