Home made solar Mobile charger
I am using my homemade solar charger for my batteries and mobile. And you? Here is the simplest way of making it: I had one 3W 12V solar panel, I could not use the output of the solar panel directly to charge the battery. The power supply required to charge mobile phones and batteries needs to be smooth regulated 5 volts. So First I tried to make the power supply regulator using the old mobile charger. you can take out the rectifier portion and use the regulator of the old charger to give the 12v unregulated output of the solar panel. Later, I found one old car mobile charger that uses 12v from the battery and gives 5v output. my purpose solved!! I gave output from solar panel to car charger's 12 v input. that's all. Solar panel costs 400 and Car mobile charger 150, so total 550, and some soldering. or if we use a regular old mobile charger then it will cost just 450. Image: solar panel Image: Car mobile charger Image: our system charging a power bank