This project is about Solar Water Pump Circuit using Battery and Relay. It uses one 18V 20W solar panel, two small 12V batteries, one relay and diodes. The circuit can run a 12V DC water pump. Battery stores power from solar panel and relay controls when pump run. It is a very simple circuit and […]
Battery Charger Circuits
Simple Solar Battery Charger Circuit
Sun gives free energy every day. We can catch this energy and store in small batteries. This Simple Solar Battery Charger Circuit does this job with very few parts. Just one solar panel, one diode and four NiMH cells. No complex electronics and no hard wiring. Good for beginners, students and for hobby makers. We […]
USB Powered Small Battery Charger Circuit
Here is super easy USB Powered Small Battery Charger Circuit. No microcontroller or no fancy parts required, just simple resistor, NiMH cells and diode system. Good for learning, good for small projects. Safe for small rechargeable cells and great for DIY makers. Circuit Working: Parts List: Component Type Quantity Resistors 1.2k , 10Ω 1 watt […]
Arduino Battery Charger Circuit
This article show how to make a simple Arduino Battery Charger Circuit. Charger stop and start charging using MOSFET. Arduino read battery temperature with TMP36 sensor and decide safe charging. Circuit is simple and work with basic components. Arduino Coding: Code Explanation: Circuit Working: Parts List: Part Name Specification Qty Resistors 10k ,10Ω 10 watt […]
Simple 12V Battery Charger Circuit using TIP41 Transistor
This is a Simple 12V Battery Charger Circuit using TIP41 Transistor. It uses one NPN power transistor TIP41 and one 13.8V Zener diode. The circuit is cheap, easy and safe for charging 12V lead acid battery. This circuit works for small 7Ah to 20Ah batteries. It is a good circuit for learning basic battery charging. […]
Simple LED Circuit
Want to light an LED using a battery? This Simple LED Circuit using 9V Battery shows how. It is the first step to learn electronics and current flow. Just with one battery, one resistor and one LED. We can make it in few minutes and see our LED glow bright. Circuit Working: Parts List: Component […]