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Battery Charger Circuits

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Simple LED Circuit

Last updated on 17 October 2025 by Admin-Lavi Leave a Comment

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 […]

Filed Under: Battery Charger Circuits, LED and Lamps

Simple Battery Level Indicator Circuit

Last updated on 14 October 2025 by Admin-Lavi Leave a Comment

No More Dead Battery! Battery gone down? having no idea? This Simple Battery Level Indicator Circuit can show battery level. Easy to make, cheap and works fast. Know when battery is full or low. Good for beginners and DIY lovers. Circuit Working: Parts List: Component Value / Type Quantity Resistors 2.2k 1/4 watt 1 680Ω […]

Filed Under: Battery Charger Circuits, Indicator Circuits

Solar Panel Battery Inverter Connection Circuit

Last updated on 11 October 2025 by Admin-Lavi Leave a Comment

This project is for Solar Panel Battery Inverter Connection Circuit It shows how solar energy is converted into electricity to power AC and DC loads. The circuit uses a solar panel, solar charge controller, battery, inverter and AC loads. This circuit can light a bulb and run a fan easily. It is suitable for small […]

Filed Under: Battery Charger Circuits, Inverter Circuits, Solar Circuits

Simple PWM Solar Charge Controller Circuit

Last updated on 9 October 2025 by Admin-Lavi Leave a Comment

Want to save energy bill? Try this Simple PWM Solar Charge Controller Circuit and get power from sun. It helps to charge battery from solar panel safely. It also gives power to DC load like LED bulb or fan. Just connect solar, battery and load and then controller will do all smart work. This controller […]

Filed Under: Battery Charger Circuits, Solar Circuits

DIY Solar Battery Charger Circuit

Last updated on 7 October 2025 by Admin-Lavi Leave a Comment

This is a small DIY Solar Battery Charger Circuit project. It charges one 3.7V lithium battery using sunlight. We can use solar cell, TP4056 charger board, one diode, one switch and one boost converter module.. This circuit make 5V power for battery and mobile charging. Graph for lithium battery charge over time: This graph show […]

Filed Under: Battery Charger Circuits, Solar Circuits

Small UPS Circuit for Router Backup

Last updated on 23 September 2025 by Admin-Lavi Leave a Comment

Never lose connection again, make this Small UPS Circuit for Router Backup. When there is power cut then internet goes off. Router and modem stop. Small UPS solve problem. This give backup to DSL modem and WiFi router. This circuit is with simple parts, easy to build and with low cost. Circuit Working: Parts List: […]

Filed Under: Battery Charger Circuits, Inverter Circuits

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