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Battery Charger Circuits

USB Powered Small Battery Charger Circuit

Last updated on 4 December 2025 by Admin-Lavi Leave a Comment

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 […]

Filed Under: Battery Charger Circuits

Arduino Battery Charger Circuit

Last updated on 4 December 2025 by Admin-Lavi Leave a Comment

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 […]

Filed Under: Arduino Projects, Battery Charger Circuits

Simple 12V Battery Charger Circuit using TIP41 Transistor

Last updated on 3 December 2025 by Admin-Lavi Leave a Comment

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. […]

Filed Under: Battery Charger Circuits, Transistor Circuits

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

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