DIY - SOLAR BATTERY CHARGER

thingiverse

Hi Everyone, I'm back again with this new tutorial. In this tutorial, I'll show you how to charge a Lithium 18650 Cell using TP4056 chip utilizing the solar energy or simply the SUN. Wouldn't it be really cool if you can charge your mobile phone's battery using the sun instead of a USB charger? You can also use this project as a DIY portable power bank. The total cost of this project excluding the battery is just under $5. The battery will add up another $4 to $5 bucks. So, the total cost of the project is something around $10. All components are available on my website for sale at really good prices; the link is in the description below. https://youtu.be/SPpgMl_TeIc Step 1: Hardware Requirements For this project, we need: - A 5v Solar Cell (make sure it's 5v and not anything less than that) - A general-purpose circuit board - A 1N4007 High Voltage, High Current Rated Diode (for reverse voltage protection). This diode is rated at forward current of 1A with peak reverse voltage rating of 1000V. - Male Breakable Pin Headers instead of copper wire to make legs for the circuit board Step 2: Assembly The assembly is very simple. The solar cell is connected to the TP4056 battery charging board's IN+ and IN- respectively. A diode is inserted at the positive end for reverse voltage protection. Then, the BAT+ and BAT- of the board are connected to the +ve and -ve ends of the battery. Now, to power an Arduino board, we need to boost up the output to 5v. So, we're adding a 5v voltage booster to this circuit. Connect the -ve end of the battery to the IN- of the booster and +ve to IN+ by adding a switch in between. Step 3: Testing This project will be very helpful to power a remote data logger. As we know, the power supply is always a problem for a remote logger and most of the times there is no power outlet available. A situation like that forces you to use some batteries to power your circuit. But eventually, the battery will die. Question is do you want to go there and charge the battery? Our inexpensive solar charger project will be an excellent solution for a situation like this to power an Arduino board. This project can also solve the efficiency issue of Arduino when in sleep. Sleep saves battery, however, the sensors and power regulators (7805) will still consume battery in idle mode draining the battery. By charging the battery as we use it, we can solve our problem. Thanks again for watching this video! I hope it helps you. If you want to support me, you can subscribe to my channel and watch my other videos. Thanks; see you again in my next video!