The second design explains a cheap yet effective less than 1 cheap yet effective solar charger circuit which can be built even by a layman for harnessing efficient solar battery charging.
Solar panel mobile charger circuit.
How to operate this solar battery charger circuit.
Solar power mobile charger circuit this circuit helps you to charge your mobile phone battery and also some rechargeable battery with solar energy before trying this circuit take extra care in battery polarity and current rating if anything goes wrong the battery might explode.
Circuit diagram of cell phone solar charger is given below.
Use some more wire supplied to connect the ve end of the battery holder to any longer of the two legs of the led.
Place the solar panel in sunlight.
Now simply use any power cable and connect it to the usb pin of the module and the other end to your mobile phone.
You will need just a solar panel panel a selector switch and some diodes for getting a reasonably effective solar charger set up.
When there is proper radiation the phone will start to get charge.
Connect the negative leg of the battery holder to red positive terminal of the solar panel.
Solar battery charger circuit which we are making is made up of electronic components which are easily available in market as well as online.
Testing the solar cell phone charger.
Solar battery charger will take the dc input from the solar panel and will regulate the voltage in order to charge the battery from it.
As shown in the above wiring diagram simply solder the solar panel in parallel and connect them to a boost converter module through a switch.